UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2025

or

For the transition period from ____________ to ____________      

Commission File Number 001-34791

Magnachip Semiconductor Corporation

(Exact name of registrant as specified in its charter)

c/o Magnachip Semiconductor, Ltd.

15F, 76 Jikji-daero 436beon-gil, Heungdeok-gu

Cheongju-si, Chungcheongbuk-do, Republic of Korea 28581

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: +82 (2) 6903-3000

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☐ Yes ☒ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. ☐ Yes ☒ No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files. ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). ☐ Yes ☒ No

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter. $139,249,768.

As of March 13, 2026, the registrant had 36,440,854 shares of common stock outstanding.

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2025

TABLE OF CONTENTS

PART I

INDUSTRY AND MARKET DATA

We have made statements in this Annual Report on Form 10-K for the year ended December 31, 2025 (this “Report”) regarding our industry and our position in the industry based on our experience in the industry and our own views of market conditions, but we have not independently verified those statements. We do not have any obligation to announce or otherwise make publicly available updates or revisions to forecasts contained in these documents.

Statements made in this Report, unless the context otherwise requires, include the use of the terms “us,” “we,” “our,” the “Company” and “Magnachip” to refer to Magnachip Semiconductor Corporation and its consolidated subsidiaries. The term “Korea” refers to the Republic of Korea or South Korea. On October 29, 2025, we completed the liquidation of Magnachip Mixed-Signal, Ltd. (“MMS”), our indirect wholly owned subsidiary that operated the Display business (the “Discontinued Business”), pursuant to our decision to discontinue that business.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

We have made certain “forward-looking” statements in this Report within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), that involve risks and uncertainties. Forward-looking statements give our current expectations and projections relating to our financial condition, results of operations, plans, objectives, future performance and business. You can identify these statements by the fact that they do not relate strictly to historical or current facts. These statements may include words such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of the timing or nature of future operating or financial performance or other events. All statements other than statements of historical facts included in this Report that address activities, events or developments that we expect, believe or anticipate will or may occur in the future are forward-looking statements.

These forward-looking statements are largely based on our expectations and beliefs concerning future events, which reflect estimates and assumptions made by our management. These estimates and assumptions reflect our best judgment based on currently known market conditions and other factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Although we believe our estimates and assumptions to be reasonable, they are inherently uncertain and involve a number of risks and uncertainties that are beyond our control. In addition, management’s assumptions about future events may prove to be inaccurate. Management cautions all readers that the forward-looking statements contained in this Report are not guarantees of future performance, and we cannot assure any reader that those statements will be realized or the forward-looking events and circumstances will occur. Actual results may differ materially from those anticipated or implied in the forward-looking statements due to the factors listed in the “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Business” sections and elsewhere in this Report.

All forward-looking statements speak only as of the date of this Report. We do not intend to publicly update or revise any forward-looking statements as a result of new information or future events or otherwise, except as required by law. These cautionary statements qualify all forward-looking statements attributable to us or persons acting on our behalf.

“Magnachip” is a registered trademark of us and our subsidiaries. All other product, service and company names mentioned in this Report are the service marks or trademarks of their respective owners.

Item 1. Business

General

We are a designer and manufacturer of analog and mixed-signal power semiconductor platform solutions for various applications, including industrial, automotive, communication, consumer and computing. We have a proven record with approximately 45 years of operating history, a portfolio of more than 950 registered patents and pending applications and extensive engineering and manufacturing process expertise. We develop and manufacture Power discrete (“Power Analog Solutions”) products and Power integrated circuit (“IC”) products. Power Analog Solutions products include metal oxide semiconductor field effect transistors (“MOSFETs”) and insulated-gate bipolar transistors (“IGBTs”) for a range of devices, including televisions, smartphones, mobile phones, wearable devices, desktop personal computers (“PCs”), notebook PCs, tablet PCs, servers, other consumer electronics, as well as automotive and industrial applications such as power suppliers, e-bikes, solar inverters, LED lighting and motor drives. Power IC products include AC-DC/DC-DC converters, LED drivers, regulators, power management integrated circuits (“PMICs”) and level shifter for a range of devices, including televisions, wearable devices, notebooks, tablet PCs and others consumer electronics, as well as automotive applications.

The wide variety of our analog and mixed-signal power semiconductor products combined with our mature technology platform allows us to address multiple high-growth end markets and rapidly develop and introduce new products in response to market demands. Our design center and substantial manufacturing operations in Korea place us at the core of the global electronics device supply chain. We believe this enables us to quickly and efficiently respond to our customers’ needs, and allows us to better serve and capture additional demand from existing and new customers. We have a long history of supplying and collaborating on product and technology development with leading innovators in the consumer electronics market. As a result, we have been able to strengthen our technology and develop products that are in high demand by our customers and end consumers. We sold approximately 350 distinct products in the year ended December 31, 2025, with a substantial portion of our revenues derived from a relatively limited number of customers.

Our business is largely driven by innovation in the consumer electronics markets and the continued adoption by consumers of worldwide of electronic devices for use in their daily lives. The consumer electronics market is large and continues to expand, largely due to consumers increasingly accessing a wide variety of rich media content, such as high definition audio and video, mobile devices, televisions and games on advanced consumer electronic devices. Electronics manufacturers are continuously implementing advanced technologies in new generations of electronic devices using analog and mixed-signal power semiconductor components, such as encoding and decoding devices that allow playback of high definition audio and video, and power semiconductors that increase power efficiency, thereby improving heat dissipation and extending battery life.

For the year ended December 31, 2025, we generated total revenues of $178.9 million, net loss of $29.7 million, operating loss of $35.9 million, Adjusted EBITDA from continuing operations of negative $15.6 million, Adjusted Operating Loss of $28.5 million and Adjusted Loss from continuing operations of $7.9 million. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” elsewhere in this Report for an explanation of our use of the Adjusted EBITDA, Adjusted Operating Income (Loss) and Adjusted Net Income (Loss) and a reconciliation to income (loss) from continuing operations and operating income (loss) prepared in accordance with United States Generally Accepted Accounting Principles (“U.S. GAAP”).

Recent Developments

On March 12, 2025, we announced that our Board of Directors and management team have made the decision to become a pure-play Power company to drive revenue growth, improve profitability, and maximize shareholder value.

This decision was based on the determination by our Board of Directors and management team that the Display business (the “Discontinued Business”) was not sustainable and could not be restructured in a manner that would enable the Company to achieve profitable growth. Our Board of Directors and Management team subsequently concluded that there were no viable strategic options for the Discontinued Business and decided to shut it down.

Along with the winding down of the Discontinued Business, the liquidation of Magnachip Mixed-Signal, Ltd. (“MMS”), our indirect wholly owned subsidiary that operated the Display business, was unanimously approved by our Board of Directors, and we completed the liquidation on October 29, 2025.

Our History

Our business was named “MagnaChip Semiconductor” when it was acquired from SK hynix Inc., formerly known as Hynix Semiconductor, Inc. (“SK hynix”), in October 2004.

On March 10, 2011, we completed our initial public offering. In connection with our initial public offering, we converted from a Delaware limited liability company to a Delaware corporation.

On September 1, 2020, we completed the sale of our Foundry Services Group business and our fabrication facility located in Cheongju, Korea (known as “Fab 4”) to SK keyfoundry Inc. This sale was part of a strategic shift in our operational focus to our standard products business. The Foundry Services Group business provided specialty analog and mixed-signal foundry services mainly for fabless and Integrated Device Manufacturer semiconductor companies.

On December 30, 2020, we changed our name from “MagnaChip Semiconductor Corporation” to “Magnachip Semiconductor Corporation.”

On May 30, 2023, we announced a plan to separate our standard products business, consisting of display solutions and power solutions business lines, into two different entities to better align our product strategies by enabling each entity to allocate its resources more effectively to the specific needs of its customers, as well as to enhance transparency, accountability and flexibility in business (the “Internal Separation”). To effectuate the Internal Separation, we reorganized our standard products business into two distinct businesses: (i) our Display IC and Power IC businesses, which are fabless businesses, were grouped together to form the Mixed-Signal Solutions (“MSS”) business, and (ii) our Power discrete business, which is an integrated device manufacturing (“IDM”) business, became the Power Analog Solutions business.

On January 10, 2024, we completed the Internal Separation by forming a new Korean limited liability company named “Magnachip Mixed-Signal, Ltd.” and transferring the MSS business into such subsidiary. Following the Internal Separation, our MSS business was primarily operated by MMS, and our Power Analog Solutions business was primarily operated by MSK, our already-existing Korean operating company.

On December 31, 2024, an intercompany business transfer agreement was executed between MMS and MSK. Considering the Company’s overall performance and strategic direction—as well as insights from benchmarking global competitors and feedback from our stockholders, both MSK and MMS agreed that consolidating the Power Analog Solutions and Power IC businesses under a single company would create a more effective framework for expanding and strengthening the Company’s business for Power products. Accordingly, the Company’s Power IC business was transferred from MMS to MSK, with the transfer being completed on January 1, 2025.

On March 12, 2025, we announced that our Board of Directors and management team have made the decision to become a pure-play Power company, focusing the Company’s investments on the Power Analog Solutions and Power IC businesses to enhance profitability and maximize shareholder value.

On April 6, 2025, our Board of Directors unanimously approved the plan to shut down the Discontinued Business, including the liquidation of MMS, our indirect wholly owned subsidiary that operated the Discontinued Business.

On October 29, 2025, we completed the liquidation of MMS.

Our Products

We established our Power Analog Solutions business in late 2007. We have introduced a number of Power Analog Solutions and Power IC (“Power Solutions”) products for power management in high-volume consumer applications. Power Analog Solutions products include metal oxide semiconductor field effect transistors (“MOSFETs”), and insulated-gate bipolar transistors (“IGBTs”) for a range of devices, including televisions, smartphones, mobile phones, wearable devices, desktop PCs, notebooks, tablet PCs, home appliance, other consumer electronics, automotive, and industrial applications such as power suppliers, e-bikes, photovoltaic inverters, LED lighting and motor drives. Our Power Analog Solutions business represented 89.7% and 84.9% of our total revenues for the fiscal years ended December 31, 2025 and 2024, respectively.

Our Power IC products provide power management solutions to major television suppliers and large panel display suppliers. These products include AC-DC/DC-DC converters, LED drivers, regulators, power management integrated circuits (“PMICs”) and level shifters for a range of devices, including televisions, wearable devices, notebooks, tablet PCs and other consumer electronics, as

well as automotive applications. Our Power IC business represented 10.3% and 9.7% of our total revenues for the fiscal years ended December 31, 2025 and 2024, respectively.

Market Opportunity

The market for power semiconductors is large and is expanding its applications. Recently, industrial applications such as power suppliers, e-bikes, photovoltaic inverters, LED lighting, motor drives, and automotive applications such as on board chargers, electric motor drives, electric pumps, DC-DC converters and powertrain inverters in hybrid & battery electric vehicle (HEV & BEV) are further driving growth in power semiconductor applications. Electronics device manufacturers recognize that the consumer experience plays a critical role in differentiating their products. To address and further stimulate consumer demand, electronics manufacturers have been driving rapid advances in the technology, functionality, form factor, cost, quality, reliability and power consumption of their products. Electronics manufacturers are continuously implementing advanced technologies in new generations of electronic devices using analog and mixed-signal semiconductor components, including power semiconductors that increase power efficiency, thereby improving heat dissipation and extending battery life.

Requirements of Leading Electronic Devices Manufacturers

We believe our target customers view the following characteristics and capabilities as key differentiating factors among available analog and mixed-signal power semiconductor suppliers:

Our Competitive Strengths

Designing and manufacturing analog and mixed-signal power semiconductors capable of meeting the evolving functionality requirements for electronics devices are challenging. In order to grow and succeed in the industry, we believe semiconductor suppliers must have a broad, advanced intellectual property portfolio, product design expertise, comprehensive product offerings and specialized manufacturing process technologies and capabilities. Our competitive strengths enable us to offer our customers solutions to solve their key challenges. We believe our strengths include:

Our Strategy

Our objective is to grow our business, cash flow and profitability and to continue strengthening our position in the semiconductor industry as a leading provider of analog and mixed-signal power semiconductor products for high-volume markets. Our business strategy emphasizes the following key elements:

Our Technology

We continuously strengthen our advanced analog and mixed-signal power semiconductor technology platform by developing innovative technologies and integrated circuit building blocks that enhance the functionality of electronics devices through high efficiency, advanced safety and protection features, small form factors, and low power consumption. Our goal is to leverage our

experience and development initiatives across multiple end markets and utilize our understanding of system-level issues our customers face to introduce new technologies that enable our customers to develop more advanced, higher performance products.

Expertise in ultra-high voltage (UHV), high voltage and deep trench Bipolar-Complementary Metal-Oxide-Semiconductor and Double-Diffused Metal-Oxide-Semiconductor (BCDMOS) process technologies, low power analog and mixed-signal design capabilities and packaging know-how are key requirements in the power management market. We are currently leveraging our capabilities in these areas with products such as AC-DC/DC-DC converters, LED drivers, regulators, PMICs, power MOSFETs and IGBTs. We believe our system-level understanding of applications such as LCD televisions, smartphones, computing, and servers, automotive, and industrial applications will allow us to more quickly develop and customize Power Solutions for our customers in these markets.

Products by Power Analog Solutions and Power IC Business Lines

Our broad portfolio of products addresses multiple high-growth end markets. A key component of our product strategy is to supply multiple related product offerings to each of the end markets that we serve.

Power Analog Solutions products

We develop, manufacture and market Power Analog Solutions products for a wide range of end-market customers. The products include MOSFETs and IGBTs for a range of devices, including LCD, LED, and UHD televisions, digital signage, smartphones, mobile phones, wearable devices, desktop PCs, notebooks, tablet PCs, other consumer electronics, consumer appliances, automotive, and industrial applications such as power suppliers, e-bikes, photovoltaic inverters, LED lighting and motor drives.

MOSFETs are used in applications to switch, shape or transfer electricity under varying power requirements. The key application segments are smartphones, mobile phones, wearable devices, LCD, LED, and UHD televisions, desktop PCs, notebooks, tablet PCs, servers, lighting and power supplies for consumer electronics automotive (electric vehicles) and industrial equipment. MOSFETs allow electronics manufacturers to achieve specific design goals of high efficiency and low standby power consumption. For example, computing solutions focus on delivering efficient controllers and MOSFETs for power management in VCORE, DDR and chipsets for audio, video and graphics processing systems.

Our Power Analog Solutions products enable customers to increase system stability and improve heat dissipation and energy use, resulting in cost savings for our customers and consumers, as well as environmental benefits. Our in-house process technology capabilities and eight-inch wafer production lines increase efficiency and contribute to the competitiveness of our products.

The following table summarizes the features of our products, including those in mass production and those undergoing customer qualification, which is the final stage of product development:

Power IC products

We develop and market Power IC products for a wide range of end-market customers. Our products include AC-DC/DC-DC converters, LED drivers, regulators, PMICs for a range of devices, including LCD, LED, and UHD televisions, digital signage, smartphones, wearable devices, notebooks, tablet PCs, other consumer electronics, and consumer appliances.

Our Power IC solutions help customers enhance system stability and improve heat dissipation and energy use, resulting in cost savings for our customers and consumers, as well as environmental benefits. Power IC utilizes standard BCD process technologies which can be sourced from multiple foundries.

The following table summarizes the features of our products, including those in mass production and those undergoing customer qualification, which is the final stage of product development:

Sales and Marketing

We focus our sales and marketing strategy on continuing to grow and leverage our existing relationships with leading consumer electronics OEMs, while expanding into industrial and automotive end markets. We believe our close collaboration with customers allows us to align our product and technology development with our customers’ existing and future needs. Because our customers often service multiple end markets, our product sales teams are organized by customers within the major geographies. We believe this facilitates the sale of products that address multiple end-market applications to each of our customers.

We sell our products through a direct sales force and a network of authorized agents and distributors. We have strategically located our sales and technical support offices near our customers. Our direct sales force consists primarily of representatives co-located with our design center in Korea, as well as our local sales and support offices and sales liaisons in Japan, Greater China, Taiwan and Europe. We have a network of agents and distributors in the U.S., Europe and the Asia Pacific region. For the years ended December 31, 2025 and 2024, we derived 34% and 23% of net sales from our Power Solutions business through our direct sales force, respectively, and 66% and 77% of net sales from our Power Solutions business through our network of authorized agents and distributors, respectively.

Customers

We sell our products to consumer, computing, communication, automotive and industrial electronics OEMs, original design manufacturers and electronics manufacturing services companies, as well as subsystem designers. For the years ended December 31, 2025 and 2024, our ten largest customers accounted for 74.3% and 73.4% of net sales from our Power Solutions business, respectively. For the year ended December 31, 2025, sales to SAMT Co., Ltd. (“SAMT”) represented 29.7% of net sales from our Power Solutions business. For the year ended December 31, 2024, sales to SAMT represented 25.4% of net sales from our Power Solutions business. For the year ended December 31, 2025, we recorded revenues of $5.0 million from customers in the U.S. and $173.9 million from all foreign countries, of which 50.6% was from Korea and 36.9% was from Greater China. For the year ended December 31, 2024, we recorded revenues of $2.1 million from customers in the U.S. and $183.7 million from all foreign countries, of which 44.9% was from Greater China and 43.5% was from Korea. All information pertaining to the geographic source of revenues is with respect to the geographic location to which our products are billed.

Intellectual Property

As of December 31, 2025, our portfolio of intellectual property assets included more than 950 registered patents and pending applications in total, including registered patents and pending applications related to display driver IC technology. Approximately 250 and 60 of our registered patents and pending applications, respectively, are novel in that they are not a foreign counterpart of an existing registered patent or pending application. Because we file patents in multiple jurisdictions, we have additional registered patents and pending applications that relate to identical technical claims in our base patent portfolio. Our registered patents expire at various times approximately over the next 19 years. While these patents are, in the aggregate, important to our competitive position, we do not believe that any single registered patent or pending application is material to us.

See “Item 1A. Risk Factors—Risks Related to Our Business—Our ability to compete successfully and achieve future growth will depend, in part, on our ability to protect our intellectual property, proprietary technology and know-how, as well as our ability to operate without infringing the proprietary rights of others.”

Competition

We operate in highly competitive markets characterized by rapid technological change and continually advancing customer requirements. Our competitors include other independent and captive manufacturers and designers of analog and mixed-signal integrated circuits, including power management semiconductor devices.

We compete based on design experience, manufacturing capabilities, the ability to satisfy customer needs from the design phase through the shipping of a completed product, length of design cycle and quality of technical support and sales personnel. Our ability to compete successfully will depend on internal and external variables, both within and outside of our control. These variables include the timeliness with which we can develop new products and technologies, product performance and quality, manufacturing yields, capacity availability, customer service, pricing, industry trends and general economic trends.

Human Capital

Our worldwide workforce consisted of 711 employees (full- and part-time) as of December 31, 2025, of which 163 were involved in sales, marketing, general and administrative, 108 in research and development (including 35 with advanced degrees), 29 in quality, reliability and assurance, and 411 in manufacturing (comprised of 36 in engineering and 375 in operations, maintenance and others). Our employees leverage their extensive expertise in engineering, design and process to accelerate the advancement of technology and be leaders in our industry. We pride our company on being a great workplace where employees from diverse backgrounds can reach their full potential.

Labor Unions

As disclosed in previous reports, we have a labor union at our Korean subsidiary, Magnachip Semiconductor, Ltd., (the “First Union”). On September 16, 2021, the formation of a second labor union at our Korean subsidiary, Magnachip Semiconductor, Ltd., (the “Second Union”) was approved by local authorities (the First Union and the Second Union are collectively referred to as the “Magnachip Semiconductor Labor Unions”). Both the First Union and the Second Union are members of a supervisory association named “Federation of Korean Trade Unions.” The First Union represents member employees who are factory workers and the Second Union represents member employees who are office workers, in both cases at our Korean subsidiary.

As of December 31, 2025, of the 688 employees at our Korean subsidiary, 370 employees at Magnachip Semiconductor, Ltd. were represented by the First Union, and 71 employees at Magnachip Semiconductor, Ltd. were represented by the Second Union. Approximately 64% of our employees at our Korean subsidiary was represented by the Magnachip Semiconductor Labor Unions.

See “Item 1A. Risk Factors—Risks Related to Our Business—If we encounter future labor problems, we may fail to deliver our products and services in a timely manner, which would adversely affect our revenues and profitability.”

Values and Culture

Our core values represent a commitment to building an environment of trust with our employees, customers, investors and the communities in which we operate. Through our values and culture, we strive to shape a better future not only for ourselves and our customers, but for humanity as a whole. At Magnachip, we strive to foster effective collaboration by respecting different perspectives, giving and receiving constructive feedback, and supporting one another.

Inclusion and Diversity

We support all employees, regardless of gender, gender identity or expression, age, veteran status, race, ethnicity, national origin, religion or disability. We place great importance on inclusion and diversity within the workplace, and believe that an inclusive and diverse culture creates a happier, more relaxed work environment.

Labor and Ethics

Magnachip strives to provide and maintain a working environment where management and employees are happy and treated with dignity and respect. Magnachip adheres to human rights and labor standards of international labor organizations, such as the United Nations and the International Labor Organization. Magnachip prohibits all forms of discrimination based on gender, race, nationality, religion and age to ensure all employees work in a safe and fair environment.

Empowering Great Talent

We offer a variety of offline training programs, including courses in the areas of design, engineering and technology, as well as courses at different job levels and leadership education. We also offer a number of online training programs, including in the areas of management/leadership and business skills such as presentation, negotiation, reporting, Information Technology and foreign language, which allow employees to improve their capabilities without time and space constraints. Every year, a majority of our employees are required to complete certain educational programs in the areas of information security, industrial safety and health, and sexual harassment prevention.

We believe the foundation of Magnachip is our research and development (“R&D”) talent. To ensure that our R&D technical professionals continue to advance their skills and knowledge, we hold periodic seminars to share research outcomes across departments and provide engineers with curricula designed to strengthen their semiconductor expertise.

We also recognize outstanding research achievements through a reward program and promote open communication between senior management and employees through CEO letters and regular town hall meetings.

Compensation and Benefits

We strive to reward employees with competitive compensation based on contribution and performance. We periodically evaluate market practices for compensation and benefits, including with respect to job function, role and responsibility, job level and region, and regularly review whether our compensation levels and distribution methods are fair and equitable. Additionally, we have long-and mid-term retention programs to attract and retain high-performing key talent.

We offer various employee benefits under the company philosophy that ensuring employees enjoy a happier life with their families is as critical as promoting their own health and well-being. All employees and their family members have access to annual medical checkup programs. Employees also have access to other benefits such as personal pensions, housing assistance, medical reimbursement plans and educational assistance programs.

Safety and Wellness

We appreciate the fact that our employees constitute one of the most critical assets of Magnachip, and therefore, their safety and wellness are key factors to our success. We have a dedicated Environmental Health & Safety (“EHS”) team that establishes and reviews internal EHS regulations based on international agreements as well as local laws and regulations. Our EHS team is also responsible for identifying, evaluating and improving EHS issues within the overall manufacturing process to ensure a safe and comfortable work environment. Magnachip has implemented and maintains an Occupational Health and Safety Management System as well as an Environmental Management System. Our sites are certified to the internationally recognized ISO 45001 and ISO 14001 standards.

In January 2021, the Korean legislature enacted the Serious Accident Punishment Act (“SAPA”), which imposes criminal liability on individuals and entities responsible for “serious accidents,” including industrial accidents that cause death, serious injury or occupational illness. SAPA essentially requires enterprises to establish relevant standards and measures to ensure a certain level of operational safety, including the health and safety of all employees. SAPA went into effect in January 2022, and in connection therewith, we appointed Mr. Seunghoon Lee as the Chief Safety Officer of Magnachip Semiconductor, Ltd. (“MSK”), who then formed a dedicated team to evaluate, improve and monitor the policies, practices, standards and systems relating to health and safety to ensure compliance with SAPA. Mr. Lee, who has over 35 years of manufacturing and industrial EHS experience at Magnachip, concurrently serves as the Chief of Manufacturing of MSK.

Environmental

We are subject to a variety of environmental, health and safety laws and regulations in each of the jurisdictions in which we operate, governing, among other things, air emissions, wastewater discharges, the generation, use, handling, storage and disposal of, and exposure to, hazardous substances (including asbestos) and waste, soil and groundwater contamination and employee health and safety. These laws and regulations are complex, change frequently and have tended to become more stringent over time. Since 2015, our Korean subsidiary has been subject to a new set of greenhouse gas emissions regulation, the Korean Emissions Trading Scheme, or K-ETS, under the Act on Allocation and Trading of Greenhouse Gas Emission Allowances. Under K-ETS, our Korean subsidiary was allocated a certain amount of emissions allowance in accordance with the National Allocation Plan prepared by the Korean government and is required to meet its allocated target by either reducing the emission or purchasing the allowances from other participants in the emission trading market.

Another example is the regulations on chemicals under Chemicals Control Act and K-REACH, which came into effect on January 1, 2015. Under these laws, our Korean subsidiary is required to comply with various requirements to report, evaluate, manage and ensure the safe usage of the chemicals used in its facilities. There can be no assurance that we have been or will be in compliance with all of these laws and regulations, or that we will not incur material costs or liabilities in connection with these laws and regulations in the future. The adoption of new environmental, health and safety laws and the failure to comply with new or existing laws or issues relating to hazardous substances could subject us to material liability (including substantial fines or penalties), impose the need for additional capital equipment or other process requirements upon us, curtail our operations or restrict our ability to expand operations.

Raw Materials

We use processes that require specialized raw materials that are generally available from a limited number of suppliers. We continue to attempt to qualify additional suppliers for our raw materials. The Securities and Exchange Commission (the “SEC”), as mandated by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, has adopted disclosure regulations for public companies that manufacture products containing certain minerals that are mined from the Democratic Republic of Congo and adjoining countries. These “conflict minerals” are commonly found in metals used in the manufacture of semiconductors. These and other government disclosure requirements and regulations could adversely affect the sourcing, availability and pricing of metals used in the manufacture of our products. See “Item 1A. Risk Factors—Risks Related to Our Business—Compliance with regulations regarding the use of “conflict minerals” could limit the supply and increase the cost of certain raw materials used in manufacturing our products.”

Available Information

Our principal executive office is located at: c/o Magnachip Semiconductor, Ltd., 15F, 76, Jikji-daero 436beon-gil, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28581, Republic of Korea, and our email address is investors@magnachip.com. Our website address is www.magnachip.com. Our annual, quarterly and current reports on Forms 10-K, 10-Q or 8-K, respectively, and all amendments thereto filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, can be accessed, free of charge, at our website as soon as practicable after such reports are filed with the SEC. In addition, our Corporate Governance Guidelines, Code of Business Conduct and Ethics, Compensation Recovery Policy, Audit Committee Charter, Compensation Committee Charter and Nominating and Governance Committee Charter are available on our website. Information contained on our website does not constitute, and shall not be deemed to constitute, part of this Report and shall not be deemed to be incorporated by reference into this Report. In addition, the SEC maintains an internet site, www.sec.gov, from which you can access our annual, quarterly and current reports on Form 10-K, 10-Q and 8-K, respectively, and all amendments to these materials after such reports and amendments are filed with the SEC. You may also request a copy of these filings, at no cost, by writing or telephoning us at the following address or phone number: c/o Magnachip Semiconductor, Ltd., 15F, 76 Jikji-daero 436beon-gil, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28581, Republic of Korea; Attention: Investor Relations; email address: investors@magnachip.com.

Information About Our Executive Officers

The following table sets forth certain information regarding our current executive officers:

Camillo Martino, Chairman and Interim Chief Executive Officer. Mr. Martino has served as the Company’s Chairman of the Board since June 2020 and as a director since August 2016. Effective August 11, 2025, Mr. Martino was also appointed Interim Chief Executive Officer of the Company. Mr. Martino currently also serves as a member of the board of directors for CXApp. Mr. Martino also serves as a member of the board of directors at multiple privately-held companies, including VVDN Technologies, Sakuu and Ceremorphic. Mr. Martino previously served as a director of Cypress Semiconductor from 2017 through to 2020, a director of Sensera from 2018 to 2024, and was also the Chief Executive Officer of Silicon Image Inc. from January 2010 until the completion of its sale to Lattice Semiconductor Corporation in March 2015. From 2008 to 2009, Mr. Martino served as Chief Operating Officer of SAI Technology Inc., where he also served as a director from 2006 to 2010. From 2005 to 2007, Mr. Martino served as a director, the President and Chief Executive Officer of Cornice Inc. From 2001 to 2005, Mr. Martino served as the Executive Vice President and Chief Operating Officer at Zoran Corporation. Prior to that, Mr. Martino held multiple positions with National Semiconductor Corporation for a total of nearly 14 years, and in four different countries. Mr. Martino holds a Bachelor of Applied Science degree from the University of Melbourne and a Graduate Diploma from Monash University in Australia. Our Board has concluded that Mr.

Martino should serve as the CEO, and also on the Magnachip Board based upon his extensive operating and Board experience with technology companies.

Shinyoung Park, Chief Financial Officer. Ms. Shinyoung Park became our Chief Financial Officer in January 2022 and became our Chief Accounting Officer in March 2020. Ms. Park previously served as the Company’s Corporate Controller from November 2018 to February 2020. Prior to that, she served as the SEC Reporting and Accounting Director from April 2015 to October 2018. Before joining the Company in April 2014, from 2005 to March 2014, Ms. Park served in various senior advisory and audit service positions at Deloitte, a public accounting firm. From 2005 to 2009, she worked at Deloitte & Touche in Chicago, Illinois; from 2009 to 2011 and then from 2013 to March 2014, she worked at Deloitte Anjin in Seoul, South Korea; and from 2011 to 2013, she worked at Deloitte in London, U.K. Ms. Park holds a B.A. degree in business administration from Sogang University, Seoul, Korea, and a Master’s degree in hospitality industry studies from New York University.

Seung Hoon Lee, Chief of Manufacturing and Chief Safety Officer. Mr. Seung Hoon Lee has served as our Chief of Manufacturing and Chief Safety Officer since 2022. He was Acting Co-General Manager of Power Analog Solutions from 2024 to 2025. Prior to that, Mr. Lee served as Chief of Manufacturing for the factories in Cheongju and Gumi, Korea from 2015 to 2020. He was Chief of Manufacturing for the Gumi factory from 2012 to 2015 and for the Cheongju factory from 2007 to 2012. Mr. Lee holds a B.S. degree in Electronic Engineering from Chosun University.

Item 1A. Risk Factors

You should carefully consider the risk factors set forth below as well as the other information contained in this Report. Any of the following risks could materially and adversely affect our business, financial condition or results of operations. As a result, the price of our common stock could decline and you could lose all or part of your investment in our common stock. Additional risks and uncertainties not currently known to us or those currently viewed by us to be immaterial may also materially and adversely affect our business, financial condition or results of operations.

Risk Factors Summary

The following is a summary of the risk factors included herein.

Risks Related to Our Business

We operate in the highly cyclical semiconductor industry, which is subject to significant downturns that may negatively impact our results of operations.

The semiconductor industry is highly cyclical and is characterized by constant and rapid technological change and price erosion, evolving technical standards, short product life cycles (for semiconductors and for the end-user products in which they are used) and wide fluctuations in product supply and demand. From time to time, these and other factors, together with changes in general economic conditions, cause significant upturns and downturns in the industry in general and in our business in particular. Periods of industry downturns have been characterized by diminished demand for end-user products, high inventory levels, underutilization of manufacturing capacity, changes in revenue mix and accelerated erosion of average selling prices. We have experienced these conditions in our business in the past and may experience renewed, and possibly more severe and prolonged, downturns in the future as a result of such cyclical changes. This may reduce our results of operations. Current global macroeconomic conditions, including higher inflation and interest rates and uncertainty caused by the Russian-Ukraine war, sustained military action and conflict in the Middle East, including the escalation of hostilities resulting from the recent strikes by Israel and the United States on Iran and retaliatory strikes related thereto, and trade tensions between the U.S., China and other countries have led to weaker end-market demand and unstable supply chain. We continue to monitor these trends and uncertainties, and any decline in end-market demand and increase in inventory levels could negatively impact our financial condition and results of operations.

We base our planned operating expenses in part on our expectations of future revenue, and a significant portion of our expenses is relatively fixed in the short term. If revenue for a particular quarter is lower than we expect, we likely will be unable to proportionately reduce our operating expenses for that quarter, which would harm our operating results for that quarter.

Our restructuring activities and dispositions of assets and businesses could result in lost business and other costs that could have a material adverse effect on our results of operations.

From time to time, we may choose to sell assets, restructure business operations, shut down manufacturing lines or otherwise dispose of assets and businesses as part of management’s strategies to better align our product offerings with market demands and our customers’ needs. In connection with these activities, we face risks that we will disrupt service to our customers, lose business and incur significant costs related to such activities. These risks include potential damage to our reputation and customer relationships if we are unable to effectively transition such customer relationships to other production lines or products or if we cannot effectively manage our supplier and vendor relationships during such activities. In addition, we may also face claims or costs associated with transitioning or eliminating certain employee positions and modifying or terminating vendor relationships in connection with those exit activities.

We may fail to realize all of the anticipated benefits of our operational initiatives, including our transition to a pure-play Power company and the exit from our Display business.

On March 12, 2025, we announced our strategy to transform the Company into a pure-play Power company. We may not realize any or all of the anticipated benefits from transitioning to a pure-play Power company, and such actions could in fact adversely affect our business. Our ability to realize the anticipated benefits of our strategy will depend, to a large extent, on our ability to continue to focus on Power Analog Solutions and Power IC products and to achieve expected growth in the absence of the Display business. Some of the anticipated benefits may not occur for a significant period of time. In addition, we may retain certain liabilities or obligations related to our Display business, some of which may be material. The focus on becoming a pure-play Power company may not enhance long-term stockholder value as anticipated. Further, our strategic actions could result in near term restructuring charges and a material impairment of our goodwill and/or intangible assets, among other things.

If we fail to develop new products and technologies or enhance our existing products in order to react to rapid technological change and market demands, our business will suffer.

Our industry is subject to constant and rapid technological change and product obsolescence as customers and competitors create new and innovative products and technologies. Products or technologies developed by other companies may render our products or technologies obsolete or noncompetitive, and we may not be able to access advanced process technologies, including smaller geometries, or to license or otherwise obtain essential intellectual property required by our customers.

We must develop new products and enhance our existing products to meet rapidly evolving customer requirements. We design products for customers that continually require higher performance and functionality at lower costs. We must, therefore, continue to enhance the performance and functionality of our products. The development process for these advancements is lengthy and requires us to accurately anticipate technological changes and market trends. Developing and enhancing these products is uncertain and can be time-consuming, costly and complex.

Customer and market requirements can change during the development of a product. There is a risk that these developments and enhancements will be late, fail to meet customer or market specifications or not be competitive with products from our competitors that offer comparable or superior performance and functionality. Any new products, such as our expanding line of power management solutions, or product enhancements, may not be accepted in new or existing markets. Our business will suffer if we fail to develop and introduce new products or product enhancements on a timely and cost-effective basis.

We manufacture our products based on our estimates of customer demand, and if our estimates are incorrect, our financial results could be negatively impacted.

We make significant decisions, including determining the levels of business that we will seek and accept, production schedules, component procurement commitments, personnel needs and other resource requirements, based on our estimates of customer demand and expected demand for and success of their products. The short-term nature of commitments by many of our customers and the possibility of rapid changes in demand for their products reduces our ability to estimate accurately future customer demand for our products. On occasion, customers may require rapid increases in supply, which can challenge our production resources and reduce margins. We may not have sufficient capacity at any given time to meet our customers’ increased demand for our products. Conversely, downturns in the semiconductor industry have caused and may in the future cause our customers to reduce significantly the amount of products they order from us. Because many of our costs and operating expenses are relatively fixed, a reduction in customer demand would decrease our results of operations, including our gross profit.

Our customers may cancel their orders, reduce quantities or delay production, which would adversely affect our margins and results of operations.

We generally do not obtain firm, long-term purchase commitments from our customers. Customers may cancel their orders, reduce quantities or delay production for a number of reasons. Cancellations, reductions or delays by a significant customer or by a group of customers, which we have experienced as a result of periodic downturns in the semiconductor industry, or failure to achieve design-wins, have affected and may continue to affect our results of operations adversely. These risks are exacerbated because many of our products are customized, which hampers our ability to sell excess inventory to the general market. We may incur charges resulting from the write-off of obsolete inventory. In addition, while we do not obtain long-term purchase commitments, we generally agree to the pricing of a particular product over a set period of time. If we underestimate our costs when determining pricing, our margins and results of operations would be adversely affected.

Our fab manufacturing depends on high utilization of our manufacturing capacity, a reduction of which could have a material adverse effect on our business, financial condition and the results of our operations.

An important factor in our success is the extent to which we are able to utilize the available capacity in our fabrication facility. As many of our costs are fixed, a reduction in capacity utilization, as well as changes in other factors, such as reduced yield or unfavorable product mix, could reduce our profit margins and adversely affect our operating results. A number of factors and circumstances may reduce utilization rates, including periods of industry overcapacity, the inability to source sufficient materials necessary for manufacturing, low levels of customer orders, operating inefficiencies, strategic evaluations and decisions by our Board related our overall business, divisions and business lines, mechanical failures and disruption of operations due to expansion or relocation of operations, power interruptions and fire, flood or other natural disasters or calamities. The potential delays and costs resulting from these factors and circumstances could have a material adverse effect on our business, financial condition and results of operations.

If our manufacturing capabilities become less competitive as the semiconductor industry continues to transition toward larger-diameter wafers and new materials, our results of operations could be adversely affected.

Our future operations and competitive position could be materially harmed if the semiconductor industry continues to transition toward 300mm wafer technology while we continue to produce on 200mm wafers. Manufacturing on smaller-diameter wafers may result in lower manufacturing efficiency and higher per-unit production costs compared to competitors utilizing 300mm wafers. As a result, we may face challenges in meeting customer demand, maintaining margins, and competing effectively in the market we serve. Continued reliance on 200mm wafer production may also allow competitors to capture market share with more cost-efficient or higher-volume production, creating operational and financial risks for our business. In addition, to the extent that we seek to develop or offer silicon carbide (SiC)-based products in response to market demand, we do not have in-house SiC fabrication capabilities and would need to rely on outsourced manufacturing arrangements. Our reliance on such alternative manufacturing arrangements could adversely affect our cost structure, manufacturing efficiency and ability to capture growth opportunities in SiC-related markets, which could have a material adverse effect on our business and results of operations.

A significant portion of our sales comes from a relatively limited number of customers, the loss of which could adversely affect our financial results.

Historically, we have relied on a limited number of customers for a substantial portion of our total revenue. If we were to lose key customers or if customers cease to place orders for our high-volume products, our financial results could be adversely affected. In addition, our arrangements with and reliance on key customers may make it less practicable to pursue certain opportunities with other potential new and existing customers. For the years ended December 31, 2025 and 2024, our ten largest customers accounted for 74.3% and 73.4% of net sales from our Power Solutions business, respectively. For the year ended December 31, 2025, sales to SAMT represented 29.7% of net sales from our Power Solutions business. For the year ended December 31, 2024, sales to SAMT represented 25.4% of net sales from our Power Solutions business. Significant reductions in sales to our largest customer, the loss of any other major customers, or a general curtailment in orders for our high-volume products within a short period of time could adversely affect our business.

The average selling prices of our semiconductor products have at times declined rapidly and will likely do so in the future, which could harm our revenue and gross profit.

The semiconductor products we develop and sell are subject to rapid declines in average selling prices. From time to time, we have had to reduce our prices significantly to meet customer requirements, and we may be required to reduce our prices in the future. This would cause our gross profit to decrease. Our financial results will suffer if we are unable to offset any reductions in our average selling prices by increasing our sales volumes, reducing our costs or developing new or enhanced products on a timely basis with higher selling prices or gross profit.

Our industry is highly competitive, and our ability to compete could be negatively impacted by a variety of factors.

The semiconductor industry is highly competitive and includes hundreds of companies, a number of which have achieved substantial market share within both our product categories and end markets. Current and prospective customers for our products and services evaluate our capabilities against the merits of our competitors. Some of our competitors are well established as independent companies and have substantially greater market share and manufacturing, financial, research and development and marketing resources than we do. We also compete with emerging companies that are attempting to sell their products in certain of our end markets and with the internal semiconductor design and manufacturing capabilities of many of our significant customers. We expect to experience continuing competitive pressures in our markets from existing competitors and new entrants.

Any consolidation among our competitors could enhance their product offerings and financial resources, further enhancing their competitive position. Our ability to compete will depend on a number of factors, including the following:

Many of these factors are outside of our control. In the future, our competitors may replace us as a supplier to our existing or potential customers, and our customers may satisfy more of their requirements internally. As a result, we may experience declining revenues and results of operations.

Changes in demand for consumer electronics in our end markets can impact our results of operations.

Demand for our products will depend in part on the demand for various consumer electronics products, in particular, digital televisions, smartphones, mobile phones, wearable devices, and other consumer applications which in turn depends on general economic conditions and other factors beyond our control. If our customers fail to introduce new products that employ our products or component parts, demand for our products will suffer. To the extent that we cannot offset periods of reduced demand that may occur in these markets through greater penetration of these markets or reduction in our production and costs, our sales and gross profit may decline, which would negatively impact our business, financial condition and results of operations.

If we fail to achieve design-wins for our semiconductor products, we may lose the opportunity for sales to customers for a significant period of time and be unable to recoup our investments in our products.

We expend considerable resources on winning competitive selection processes, known as design-wins, to develop semiconductor products for use in our customers’ products. These selection processes are typically lengthy and can require us to incur significant design and development expenditures. We may not win the competitive selection process and may never generate any revenue despite incurring significant design and development expenditures. Once a customer designs a semiconductor into a product, that customer is likely to continue to use the same semiconductor or enhanced versions of that semiconductor from the same supplier across a number of similar and successor products for a lengthy period of time due to the significant costs associated with qualifying a new supplier and potentially redesigning the product to incorporate a different semiconductor. If we fail to achieve initial design-wins in a customer’s qualification process, we may lose the opportunity for significant sales to that customer for a number of products and for a lengthy period of time. This may cause us to be unable to recoup our investments in our semiconductor products, which would harm our business.

We have lengthy and expensive design-to-mass production and manufacturing process development cycles that may cause us to incur significant expenses without realizing meaningful sales, the occurrence of which would harm our business.

The cycle time from the design stage to mass production for some of our products is long and requires the investment of significant resources with many potential customers without any guarantee of sales. Our design-to-mass production cycle typically begins with a three-to-twelve month semiconductor development stage and test period followed by a three-to-twelve month end-product qualification period by our customers. The fairly lengthy front end of our sales cycle creates a risk that we may incur significant expenses but may be unable to realize meaningful sales. Moreover, prior to mass production, customers may decide to cancel their products or change production specifications, resulting in sudden changes in our product specifications, increasing our production time and costs. Failure to meet such specifications may also delay the launch of our products or result in lost sales.

Research and development investments may not yield profitable and commercially viable products, and thus will not necessarily result in increases in revenues for us.

We invest significant resources in our research and development. Our research and development efforts, however, may not yield profitable or commercially viable products. During each stage of research and development, there is a substantial risk that we will have to abandon a potential product that is no longer marketable and in which we have invested significant resources. In the event we are able to develop viable new products, a significant amount of time will have elapsed between our investment in the necessary research and development effort and the receipt of any related revenues.

We face numerous challenges relating to executing our growth strategy, and if we are unable to execute our growth strategy effectively, our business and financial results could be materially and adversely affected.

Our growth strategy is to leverage our advanced analog and mixed-signal power technology platform, continue to innovate and deliver new products, increase business with existing customers, broaden our customer base, aggressively grow our power business, and drive execution excellence. If we are unable to execute our growth strategy effectively, we may not be able to take advantage of market opportunities, execute our business plan or respond to competitive pressures. Moreover, if our allocation of resources does not

correspond with future demand for particular products, we could miss market opportunities and our business and financial results could be materially and adversely affected.

We are subject to risks associated with currency fluctuations, and changes in the exchange rates of applicable currencies could impact our results of operations.

Historically, a portion of our revenues and greater than the majority of our operating expenses and costs of sales have been denominated in non-U.S. currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations in U.S. dollars, changes in the exchange rate between the Korean won and the U.S. dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the amount of our consolidated revenues and expenses that are in U.S. dollars relative to Korean won, a depreciation in the U.S. dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and therefore could cause our profit margins and operating income to appear to decline materially, particularly relative to prior periods. The converse is true if the U.S. dollar were to appreciate relative to the Korean won. For example, foreign currency fluctuations had a favorable impact on our reported profit margins and operating income from operations for the fiscal years ended December 31, 2025 and 2024 due to a relatively weaker Korean won during the periods. Moreover, our foreign currency gain or loss would be affected by changes in the exchange rate between the Korean won and the U.S. dollar including those related to the intercompany long-term loans to our Korean subsidiary, Magnachip Semiconductor, Ltd., or MSK, which is denominated in U.S. dollars. As of December 31, 2025, the outstanding intercompany loan balance including accrued interests between MSK and our Dutch subsidiary was $75.1 million. While the intercompany loan balance including accrued interest has decreased compared to prior periods, changes in exchange rates could continue to affect our reported foreign currency gain or loss. As a result of foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of our common stock could be adversely affected.

From time to time, we may engage in exchange rate hedging activities in an effort to mitigate the impact of exchange rate fluctuations. Our Korean subsidiary, Magnachip Semiconductor Ltd., enters into foreign currency zero cost collar contracts in order to mitigate a portion of the impact of U.S. dollar-Korean won exchange rate fluctuations on our operating results. These foreign currency zero cost collar contracts typically require us to sell specified notional amounts in U.S. dollars and provide us the option to sell specified notional amounts in U.S. dollars during successive months to our counterparty in exchange for Korean won at specified exchange rates. Obligations under these foreign currency zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These zero cost collar contracts may be terminated by the counterparty in a number of circumstances, including if our total cash and cash equivalents is less than $30 million at the end of a fiscal quarter. We cannot assure that any hedging technique we implement will be effective. If our hedging activities are not effective, changes in currency exchange rates may have a more significant impact on our results of operations. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Affecting our Results of Operations” for further details.

The loss of our key employees would materially adversely affect our business, and we may not be able to attract or retain the technical or management employees necessary to compete in our industry.

Our key executives have substantial experience and have made significant contributions to our business, and our continued success is dependent upon the retention of our key management executives. The loss of such key personnel would have a material adverse effect on our business. In addition, our future success depends on our ability to attract and retain skilled technical and managerial personnel. We do not know whether we will be able to retain all of these employees as we continue to pursue our business strategy. The loss of the services of key employees, especially our key design and technical personnel, or our inability to retain, attract and motivate qualified design and technical personnel, could have a material adverse effect on our business, financial condition and results of operations. This could hinder our research and product development programs or otherwise have a material adverse effect on our business.

If we encounter future labor problems, we may fail to deliver our products and services in a timely manner, which would adversely affect our revenues and profitability.

As of December 31, 2025, 441 employees, or approximately 64% of our employees, were represented by the Magnachip Semiconductor Labor Unions. We can offer no assurance that any issues with the labor union and other employees will be resolved favorably for us in the future, that we will not experience work stoppages or other labor problems in future years or that we will not incur significant expenses related to such issues.

We may incur costs to engage in future business combinations or strategic investments, and we may not realize the anticipated benefits of those transactions.

As part of our business strategy, we may seek to enter into business combinations, investments, joint ventures and other strategic alliances with other companies in order to maintain and grow revenue and market presence as well as to provide us with access to technology, products and services. Any such transaction would be accompanied by risks that may harm our business, such as difficulties in assimilating the operations, personnel and products of an acquired business or in realizing the projected benefits, disruption of our ongoing business, potential increases in our indebtedness and contingent liabilities and charges if the acquired company or assets are later determined to be worth less than the amount paid for them in an earlier original acquisition. In addition, our indebtedness may restrict us from making acquisitions that we may otherwise wish to pursue.

The failure to achieve acceptable manufacturing yields could adversely affect our business.

The manufacturing of semiconductors involves highly complex processes that require precision, a highly regulated and sterile environment and specialized equipment. Defects or other difficulties in the manufacturing process can prevent us from achieving acceptable yields in the manufacturing of our products, which could lead to higher costs, a loss of customers or delay in market acceptance of our products. Slight impurities or defects in the photomasks used to print circuits on a wafer or other factors can cause significant difficulties, particularly in connection with the production of a new product, the adoption of a new manufacturing process or any expansion of our manufacturing capacity and related transitions. We may also experience manufacturing problems in achieving acceptable yields as a result of, among other things, transferring production to other facilities, upgrading or expanding existing facilities or changing our process technologies. Yields below our target levels can negatively impact our gross profit and may cause us to eliminate underperforming products.

We rely on a number of independent subcontractors and the failure of any of these independent subcontractors to perform as required could adversely affect our operating results.

A substantial portion of our net sales are derived from semiconductor devices assembled in packages or on film. The packaging and testing of semiconductors require technical skills and specialized equipment. For the portion of packaging and testing that we outsource, we use subcontractors located in Korea and China. We rely on these subcontractors to package and test our devices with acceptable quality and yield levels, and, while we specify quality standards, we are not able to directly oversee their day-to-day operations and the packaging and testing of our devices. Onboarding of a new subcontractor, including as a result of switching from one subcontractor to another, takes approximately three to six months to verify the subcontractor’s capabilities and an additional six to twelve months to receive approval from our customers to use such subcontractor. We could be adversely affected by political disorders, labor disruptions, public health issues (including viral or other disease outbreaks) and natural disasters where our subcontractors are located due to the time it would take to onboard a new subcontractor. If our semiconductor packagers and test service subcontractors experience problems in packaging and testing our semiconductor devices, experience prolonged quality or yield problems, experience shutdowns or delays associated with public health issues, or decrease the capacity of their operations available to us, our operating results could be adversely affected.

We cooperate with an independent foundry to produce certain Power IC products, and the failure of such independent foundry to satisfy our demand could materially disrupt our business.

We use independent foundry services for certain of our Power IC products. Silicon wafer production at the external foundry is allocated solely by the vendor and beyond our direct control. Therefore, any disruption in wafer supply from the vendor could have a material impact on our revenue and results of operations.

Global shortages in manufacturing capacities could interrupt or negatively affect our operations, increase cost to manufacture and negatively impact our results of operations.

Increases in demand for semiconductor products have in the past and may again in the future result in a global shortage of manufacturing capacity. As a result, we may experience increases in the costs to manufacture our products and may not be able to manufacture and deliver all of the orders placed by our customers. If we are unable to secure manufacturing capacities from our current subcontractors, our ability to deliver our products to our customers may be negatively impacted. Also, our subcontractors may increase their fees, which would result in an increase in our manufacturing costs, which we may not be fully able to pass to our customers. These factors could cause a negative impact on our results of operations.

We depend on successful parts and materials procurement for our manufacturing processes, and a shortage or increase in the price of these materials could interrupt our operations and result in a decline of revenues and results of operations.

We procure materials and electronic and mechanical components from international sources and original equipment manufacturers. We use a wide range of parts and materials in the production of our semiconductors, including silicon, processing chemicals, processing gases, precious metals and electronic and mechanical components, some of which, such as silicon wafers, are specialized raw materials that are generally only available from a limited number of suppliers. If demand increases or supply decreases for any reason, the costs of our raw materials could significantly increase. For example, worldwide supplies of silicon wafers, an important raw material for the semiconductors we manufacture, have been constrained in recent years due to an increased demand for silicon. We from time to time may enter into multi-year agreements, which specify future quantities and pricing of materials to be supplied by the vendors of these materials; however, this option may not be available to us and we cannot assure that supply increases will match demand increases. If we cannot obtain adequate materials in a timely manner or on favorable terms for the manufacture of our products, revenues and results of operations will decline.

Compliance with regulations regarding the use of “conflict minerals” could limit the supply and increase the cost of certain raw materials used in manufacturing our products.

The SEC, as mandated by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, adopted disclosure regulations for public companies that manufacture products containing certain minerals that are mined from the Democratic Republic of Congo and adjoining countries and procedures pertaining to a manufacturer’s efforts regarding the source of such minerals. These “conflict minerals” are commonly found in metals used in the manufacture of semiconductors. Manufacturers are also required to disclose their efforts to prevent the sourcing of such minerals and metals produced from them. These requirements and other government regulations could adversely affect the sourcing, availability and pricing of metals used in the manufacture of our products. We may also incur additional costs to comply with these regulations and disclosure requirements, including costs related to determining the source of any of the relevant minerals used in our products. We may also face difficulties in satisfying customers who may require that our products be certified as free of “conflict materials,” which could harm our relationships with these customers and lead to a loss of revenue.

We face warranty claims, product return, litigation and liability risks and the risk of negative publicity if our products fail.

Our semiconductors are incorporated into a number of end products, and our business is exposed to product return, warranty and product liability risk and the risk of negative publicity if our products fail. Although we maintain insurance for product liability claims, the amount and scope of our insurance may not be adequate to cover a product liability claim that is asserted against us. In addition, product liability insurance could become more expensive and difficult to maintain and, in the future, may not be available on commercially reasonable terms, or at all. In addition, we are exposed to the product liability risk and the risk of negative publicity affecting our customers. Our sales may decline if any of our customers are sued on a product liability claim. We also may suffer a decline in sales from the negative publicity associated with such a lawsuit or with adverse public perceptions in general regarding our customers’ products. Further, if our products are delivered with impurities or defects, we could incur additional development, repair or replacement costs, and our credibility and the market’s acceptance of our products could be harmed.

We could suffer adverse tax and other financial consequences as a result of changes in, or differences in the interpretation of, applicable tax laws, or the adoption of new U.S. or international tax legislation.

Our company’s organizational structure was created in part based on certain interpretations and conclusions regarding various tax laws, including withholding tax and other tax laws of applicable jurisdictions. Our interpretations and conclusions regarding tax laws, however, are not binding on any taxing authority and, if these interpretations and conclusions are incorrect, if our business were to be operated in a way that rendered us ineligible for tax exemptions or caused us to become subject to incremental tax, or if the authorities were to change, modify or have a different interpretation of the relevant tax laws, we could suffer adverse tax and other financial consequences, and the anticipated benefits of our organizational structure could be materially impaired. Our company’s organizational structure and other tax positions are subject to review by tax authorities in the local and other jurisdictions where we operate our business.

Our provision for income taxes is subject to volatility and could be negatively affected by earnings being (i) lower than anticipated in jurisdictions that have lower statutory tax rates or (ii) higher than anticipated in jurisdictions that have higher statutory tax rates. In addition, our provision for income taxes could be negatively affected by changes in the valuation of our deferred tax assets and liabilities, changes to global intangible low-tax income tax laws, transfer pricing adjustments, or changes in tax laws, regulations, or accounting principles.

Additional changes in the U.S. tax regime or in how U.S. multinational corporations are taxed on foreign income, including changes in how existing tax laws are interpreted or enforced, could adversely affect our business, financial condition or results of operations. For example, the Organization for Economic Cooperation and Development (OECD) has recommended changes to numerous long-standing international tax principles through its base erosion and profit shifting (BEPS) project. These changes, to the extent adopted, may increase tax uncertainty, result in higher compliance costs and adversely affect our provision for income taxes, results of operations and/or cash flow.

On August 16, 2022, the U.S. enacted the Inflation Reduction Act of 2022 (the “IRA”), which, among other things, implements a 15% alternative minimum tax on the adjusted financial statement income of large corporations with average annual financial income exceeding $1 billion, a 1% excise tax on the repurchase of corporate stock by certain corporations and several tax incentives to promote clean energy. The IRA provisions are effective for tax years beginning after December 31, 2022. On December 12, 2022, the European Union member states agreed to implement the OECD’s Pillar 2 global minimum effective tax rate of 15% on multinational enterprise (“MNE”) groups with consolidated revenues of at least EUR 750 million during two of the four preceding fiscal years, which became effective for fiscal years beginning January 1, 2024, in many jurisdictions worldwide. Additionally, South Korea has enacted legislation implementing global minimum tax rules, including an income inclusion rule generally effective for fiscal years beginning on or after January 1, 2024 and an undertaxed profits rule generally effective for fiscal years beginning on or after January 1, 2025. South Korea has also enacted a qualified domestic minimum top-up tax generally effective for fiscal years beginning on or after January 1, 2026. Our company is monitoring the implementation of the Pillar 2 and the resulting legislation in jurisdictions where it operates. Based on our assessment, the company does not expect a material impact from Pillar 2 top-up taxes as the company is below the EUR 750 million revenue threshold. We will continue to monitor as new information and guidance becomes available.

We are also subject to regular reviews, examinations and audits by the Internal Revenue Service (IRS) and other taxing authorities, including the Korean National Tax Service, with respect to income and non-income based taxes both within and outside the U.S. In connection with the OECD’s BEPS project, companies are required to disclose more information to tax authorities on operations around the world, which may lead to greater audit scrutiny of income earned in various countries. Economic and political pressures to increase tax revenues in jurisdictions in which we operate, or the adoption of new or reformed tax legislation or regulation, may make resolving tax disputes more difficult and the final resolution of tax audits and any related litigation could differ from our historical provisions and accruals, resulting in an adverse impact on our business, financial condition or results of operations.

Expanded trade restrictions imposed by the United States may limit our ability to sell to certain customers.

Export control regulations have been evolving rapidly in recent years. New or expanded restrictions or sanctions may limit our ability to sell to or source from affected parties. These controls may cover foreign-produced items, advanced technologies, or entities on the U.S. government's Entity List. If we are unable to serve these customers, they may turn to domestic solutions or competitors not subject to similar regulations. Such developments may materially impact our revenue and future business opportunities in these regions. Maintaining compliance with global trade and export regulations is increasingly complex, time-consuming, and resource-incentive. Failure to comply could result in fines, reputational harm, or limitations on our ability to operate in key international markets. Export restrictions may also affect our contractors, suppliers or customers, and we cannot assure that they will not violate the restrictions, and any such violations may result in fines or criminal sanctions against us and damage our reputation.

Additionally, the U.S. has published significant changes to U.S. export control regulations with respect to Russia and China, and we anticipate additional changes to export control regulations in the future. For example, the U.S. government has implemented controls on advanced computing ICs, computer commodities that contain such ICs, and certain semiconductor manufacturing items, as well as controls on transactions involving items for supercomputer and semiconductor manufacturing end-users. The new controls expand the scope of foreign-produced items subject to license requirements for certain entities on the U.S. government’s Entity List. Further changes in the U.S. export control regulations, including changes in the enforcement and scope of such regulations, may create delays in the introduction of our products or services in international markets or could prevent our customers with international operations from deploying our products or services globally. In some cases, such changes could prevent the export or import of our products, which could have a material impact on our future results of operations and financial condition.

Expanded trade restrictions imposed by South Korea may limit our ability to engage in any potential strategic opportunities.

Under the Act on Prevention of Leakage and Protection of Industrial Technology of Korea (the “ITA”), any export (including various means of outflow, such as sale or transfer outside Korea) of National Core Technology (“NCT”) by the Korean Ministry of Trade, Industry and Resources (the “MOTIR”) requires the filing of a prior-report with, and the acceptance of the same by, the MOTIR. Under the Act on Special Measures for Strengthening and Protecting the Competitiveness of the National High-Tech Strategic Industry (the “Special Act”), any export of National High-Tech Strategic Technology (“NHST”) requires prior approval

from the MOTIR. Any such export of NCT or NHST without the acceptance of the prior-report with the MOTIR or the prior approval from the MOTIR may be subject to corrective orders by the MOTIR and may also be subject to criminal sanctions.

The Notification Regarding Designation of National Core Technologies issued by the MOTIR was amended on July 14, 2021 to add certain technologies to the list of NCT designated by the MOTIR, and the amended list includes the OLED DDI design technology for driving display panels. The MOTIR designated certain technologies, including the OLED DDI design technology for driving display panels, as NHST under the Special Act.

In the event that our Korean subsidiary, Magnachip Semiconductor, Ltd. (“MSK”), license or sell certain intellectual properties relating to OLED Display Driver IC (“OLED DDI”) to overseas entities, such license or sale may constitute an export of NCT and NHST and may be subject to both NCT and NHST restrictions, and therefore the MOTIR’s acceptance of prior reports and prior approval. There is no assurance that any prior-reports for the export will be accepted by the MOTIR or we will obtain any prior approval for the export from the MOTIR when such license or sale is pursued in the future.

In addition, in the event that there is any M&A transaction with respect to MSK that results in non-Korean ownership of 50% or more, or exertion of control over the appointment of officers/management by a non-Korean person or entity as the largest shareholder, a prior-report with and the acceptance by the MOTIR is required under the ITA and a prior approval from the MOTIR is required under the Special Act. There is no assurance that any report for an M&A transaction involving non-Korean acquirers or investors will be accepted by the MOTIR, nor we can assure approval for the M&A transaction from the MOTIR when such transaction is pursued in the future.

Recent changes in international trade policy and the imposition and threats of international tariffs, including tariffs applied to goods traded between the United States and other countries/regions, could materially and adversely affect our business and results of operations.

Since the beginning of 2018, there have been increasing public threats and, in some cases, legislative or executive action, from U.S. and foreign leaders regarding instituting tariffs against foreign imports of certain materials. More specifically, since March of 2018, the U.S. and China have applied tariffs to certain of each other’s exports. The institution of trade tariffs globally, and between the U.S. and China specifically, may negatively impact the affected countries’ economic conditions, which could negatively affect demand for our products in those countries and materially and adversely affect our business and results of operations of our customers serving the affected markets. The Trump Administration's recent imposition of additional tariffs on a number of countries in 2025 and 2026, and threat of trade wars against foreign countries/regions have created even more uncertainties in international trade which may affect our business. These include semiconductor-specific tariffs, which the Trump Administration intends to materially increase over time, and historically elevated baseline and country-specific tariffs. The Trump Administration’s international trade policy and its implementation of tariffs continues to evolve in light of U.S. judicial decisions and negotiations with international trading partners. For example, the imposition of tariffs could increase costs of the end-user products we supply that we may not be able to pass on to our customers, which could in turn cause a decrease in the sales of our products and materially and adversely affect our business and results of operations.

Our ability to compete successfully and achieve future growth will depend, in part, on our ability to protect our intellectual property, proprietary technology and know-how, as well as our ability to operate without infringing the proprietary rights of others.

We attempt to protect our intellectual property rights, both in the U.S. and in foreign countries, through a combination of patent, trademark, copyright, mask works and trade secret laws, as well as licensing agreements and third-party nondisclosure and assignment agreements. Because of the differences in foreign trademark, patent and other laws concerning proprietary rights, our intellectual property rights may not receive the same degree of protection in foreign countries as they would in the U.S. In particular, the validity, enforceability and scope of protection of intellectual property in China, where we derive a significant portion of our net sales, and certain other countries where we derive net sales, are uncertain and still evolving and historically have not protected, and may not protect in the future, intellectual property rights to the same extent as do the laws and enforcement procedures in the U.S. Our failure to obtain or maintain adequate protection of our intellectual property rights for any reason could have a material adverse effect on our business, results of operations and financial condition.

We seek to protect our proprietary technologies and know-how through the use of patents, trade secrets, confidentiality agreements and other security measures. The process of seeking patent protection takes a long time and is expensive. There can be no assurance that patents will issue from pending or future applications or that, if patents issue, they will not be challenged, invalidated or circumvented, or that the rights granted under the patents will provide us with meaningful protection or any commercial advantage. Many of our patents are subject to cross licenses, some of which are with our competitors. Some of our technologies are not covered by any patent or patent application. The confidentiality agreements on which we rely to protect these technologies may be breached

and may not be adequate to protect our proprietary technologies. Further, it is possible that others will independently develop the same or similar technologies, even without access to our proprietary technologies.

We rely on our trademarks, trade names, and brand names to distinguish our products from the products of our competitors, and have registered or applied to register many of these trademarks. We cannot assure you that our trademark applications will be approved. Third parties may also oppose our trademark applications, or otherwise challenge our use of the trademarks. In the event that our trademarks are successfully challenged, we could be forced to rebrand our products, which could result in loss of brand recognition, and could require us to devote resources advertising and marketing new brands. Further, we cannot assure you that competitors will not infringe our trademarks, or that we will have adequate resources to enforce our trademarks.

Our ability to compete successfully depends on our ability to operate without infringing the proprietary rights of others. We have no means of knowing what patent applications have been filed until they are published. In addition, the semiconductor industry is characterized by frequent litigation regarding patent and other intellectual property rights. We may need to file lawsuits to enforce our patents or intellectual property rights, and we may need to defend against claimed infringement of the rights of others. Any litigation could result in substantial costs to us and divert our resources, and we cannot assure you that we will prevail. Any claims of intellectual property infringement or misappropriation against use, even those without merit, could require us to:

There can be no assurance that we would be successful in such development or acquisition or that such licenses would be available under reasonable terms, or at all.

We license certain intellectual property from third parties. The termination of key third-party licenses relating to the use of intellectual property in our products and our design processes would adversely affect certain areas of our business.

We are subject to many environmental laws and regulations that could affect our operations or result in significant expenses.

We are subject to a variety of environmental, health and safety laws and regulations in each of the jurisdictions in which we operate, governing, among other things, air emissions, wastewater discharges, the generation, use, handling, storage and disposal of, and exposure to, hazardous substances (including asbestos) and wastes, soil and groundwater contamination and employee health and safety. These laws and regulations are complex, change frequently and have tended to become more stringent over time. Among them is the Act on Remediation and Compensation for Damages arising from Environmental Contamination which came into effect in Korea on January 1, 2016 and provides for strict liability of business entities in violation of the act and alleviates the burden of proof for the damaged party. Further, under the amendment to the Act on the Control and Aggravated Punishment of Environmental Offenses that became effective on November 27, 2020, certain environmental offenses such as illegally emitting specified hazardous air pollutants or emitting air pollutants without necessary permits are subject to penalties of up to 5% of the sales amount generated from the relevant business. Moreover, to effectively respond to environmental crimes, on November 14, 2022, a joint investigation team was established, consisting of experts from both national and local governments, including the prosecutor’s office, the Ministry of Environment. As a result, we have increased potential exposure to liability for environmental contaminations that might have existed in the past or would arise in the future. There can be no assurance that we have been, or will be, in compliance with all such laws and regulations or that we will not incur material costs or liabilities in connection with these laws and regulations in the future. The adoption of new environmental, health and safety laws, the failure to comply with new or existing laws, or issues relating to hazardous substances could subject us to material liability (including substantial fines or penalties), impose the need for additional capital equipment or other process requirements upon us, curtail our operations or restrict our ability to expand operations.

Our Korean subsidiary has been designated as a regulated business under Korean environmental law, and such designation could have an adverse effect on our financial position and results of operations.

Since 2015, our Korean subsidiary has been subject to K-ETS, a new set of greenhouse gas emissions regulations, under the Act on Allocation and Trading of Greenhouse Gas Emission Allowances. Under K-ETS, our Korean subsidiary was allocated a certain

amount of emissions allowance in accordance with the National Allocation Plan prepared by the Korean government, and are required to meet their allocated target by either reducing emissions or purchasing allowances from other participants or the government in the emission trading market. Reduction of our emissions or energy consumption may result in additional and potentially costly compliance or remediation expenses, including potentially the installation of equipment and changes in the type of materials we use in manufacturing, as well as cost of procuring emission allowances to cover the excess emissions, which could adversely affect our financial position and results of operations. During the first implementation period from 2015 to 2017 and second implementation period from 2018 to 2020, we did not exceed the allocated emission amount. Our Korean subsidiary has been allocated emissions allowance in the third implementation period from 2021 to 2025, and we do not expect to exceed the allocated emission amount during the third implementation period. If, however, our Korean subsidiary exceeds the allocated emission amount the third implementation period, we will be required to pay for the excess emissions and may be subject to other regulatory action. We will continue to monitor our compliance with the emissions allowance on a yearly basis. In addition, from time to time, if we assess that we have excess allowances, we may sell such excess allowances to manufacturers in the emission market in Korea.

Furthermore, the Korean legislature enacted the Framework Act on Carbon Neutrality and Green Growth for Responding to Climate Change (the “Carbon Neutrality Framework Act”) on September 24, 2021. The Carbon Neutrality Framework Act aims to reduce greenhouse gas emissions by more than 35% by 2030 (compared to 2018) and proclaims the achievement of carbon neutrality by 2050 as a national vision. The Carbon Neutrality Framework Act is significant in that it legislates carbon neutrality and greenhouse gas reduction objectives, and enables the central administrative agencies, local governments and public institutions to implement various measures towards such objectives. On March 25, 2022, the Enforcement Decree of the Carbon Neutrality Framework Act (the “Enforcement Decree”) was enacted. The Enforcement Decree aims to provide details required for the execution of items prescribed under the Carbon Neutrality Framework Act. The key provisions of the Enforcement Decree include those setting the mid-to long-term greenhouse gas reduction goal at 40% and implementing the climate change impact assessment scheme. Based on that, on April 11, 2023, the Korean government published the 1st National Basic Plan for Carbon Neutrality and Green Growth (the “Basic Plan”). The Basic Plan is a national plan for responding to the climate crisis and sustainable development. Including annual reduction goals and implementation measures for each sector (e.g., industry and transportation), the Basic Plan will be updated every five years over the next 20 years between 2023 and 2042. It is anticipated that the Carbon Neutrality Framework Act and the Basic Plan, which aims to promote the harmonious development of the economy and the environment in conjunction with active greenhouse gas reduction measures, will serve as the foundation for the government’s climate change response policy going forward. Meanwhile, on August 29, 2024, the Constitutional Court of Korea (the “Constitutional Court”) held that Article 8, Paragraph 1 of the Carbon Neutrality Framework Act is unconstitutional. This provision mandates the government to establish a national mid- to long-term target for reducing greenhouse gas emissions by at least 35% from 2018 levels by 2030 which is prescribed by presidential decree. The Constitutional Court ruled that this provision is indeed in violation of the Constitution because it fails to specify any emissions reduction targets beyond 2031, thereby infringing upon the petitioners’ right to clean environment. Considering that the extensive legislative authority to determine reduction targets during the period from 2031 to 2049, the Constitutional Court held that the provision would remain in effect until a legislative amendment is enacted, with a deadline set for February 28, 2026. Reflecting the ruling of the Constitutional Court, the government determined in November 2025 to set the 2035 Nationally Determined Contribution (NDC) at a reduction target of 53% to 61% compared to 2018 net emissions levels.

Our compliance with the Serious Accidents Punishment Act (the “SAPA”) could require significant expenditures and management time and expose us to liability for violations.

Enacted on January 26, 2021 and effective as of January 27, 2022 in Korea, the SAPA imposes enhanced liability exposure for workplace accidents. The legislative goal of the SAPA is to prevent serious accidents by prescribing punishments and punitive damages liability for business owners or responsible management personnel who have violated safety and health measures in the event of such serious accidents (serious industrial accidents and serious civil accidents). Since the law applies to businesses in Korea with 50 or more full-time employees starting from January 27, 2022, our Korean subsidiary is subject to the law. According to the SAPA, if a serious occupational accident occurs that results in at least one deceased person, at least two persons wounded for six months or more, or at least three persons suffering from occupational diseases within a one year period, and if the “business owners or responsible management personnel” of the relevant business place is found to have failed to perform its “obligation to secure safety and health,” that person may be subject to imprisonment for up to 7 year or a fine of up to KRW 100 million (in case of death, imprisonment for not less than 1 year or a fine of not less than KRW 1 billion). Additionally, if there was negligence of the company in giving due attention and supervision to prevent such accident, the company will be subject to a fine up to KRW 1 billion (in case of death, a fine up to KRW 5 billion) under joint penalty provisions. Relevant responsible management personnel are also required to spend more time, effort and cost to comply with the SAPA and perform the necessary additional duties imposed by the law to ensure compliance.

We may need additional capital in the future, and such capital may not be available on acceptable terms or at all, which would have a material adverse effect on our business, financial condition and results of operations.

We may require more capital in the future from equity or debt financings to fund operating expenses, such as research and development costs, finance investments in equipment and infrastructure, acquire complementary businesses and technologies, and respond to competitive pressures and potential strategic opportunities. If we raise additional funds through further issuances of equity or other securities convertible into equity, our existing stockholders could suffer significant dilution, and any new shares we issue could have rights, preferences or privileges senior to those of the holders of our common stock. There can be no assurance that any additional equity or debt financing would be available to us, or if available, that such financing would be on favorable terms to us. Accordingly, if we are unable to obtain additional capital or our business does not generate sufficient cash flows from operating activities to fund our working capital needs and planned capital expenditures, and our cash reserves are depleted, we may need to take various actions, such as down-sizing and/or eliminating certain operations, which could include additional exit costs, reducing or delaying capital expenditures, selling assets, or other restructuring actions. There can be no assurance that we would be successful in taking such actions and, in any event, such actions may result in a material adverse effect on our business and results of operations. In addition, our indebtedness limits our ability to incur additional indebtedness under certain circumstances.

Our business depends on international customers, suppliers and operations in Asia, and as a result we are subject to regulatory, operational, financial and political risks, which could adversely affect our financial results.

We rely on, and expect to continue to rely on, suppliers, subcontractors and operations located primarily in Asia. As a result, we face risks inherent in international operations, such as unexpected changes in regulatory requirements, tariffs and other market barriers, political, social and economic instability, adverse tax consequences, war, civil disturbances and acts of terrorism, public health issues (including viral or other disease outbreaks), difficulties in accounts receivable collection, extended payment terms and differing labor standards, enforcement of contractual obligations and protection of intellectual property. These risks may lead to increased costs or decreased revenue growth, or both.

Tensions with North Korea could have an adverse effect on us and the market value of our shares.

Relations between South Korea and North Korea have been tense throughout Korea’s modern history. The level of tension between the two Koreas has fluctuated and may increase abruptly as a result of current and future events. In particular, in recent years, there have been heightened security concerns stemming from North Korea’s nuclear weapon and long-range missile programs and increased uncertainty regarding North Korea’s actions and possible responses from the international community.

North Korea’s economy also faces severe challenges, and any adverse economic developments may further aggravate social and political tensions within North Korea.

Although we do not derive any revenue from, nor sell any products in, North Korea, any future increase in tensions between South Korea and North Korea that may occur, for example, if North Korea experiences a leadership crisis, high-level contacts between South Korea and North Korea break down, or military hostilities occur, could have a material adverse effect on the South Korean economy and on our business, financial condition, results of operations and the market value of our common stock.

We may be subject to disruptions, breaches or cyber-attacks of our secured networks and information technology systems that could damage our reputation, harm our business, expose us to liability and materially adversely affect our results of operations.

In the ordinary course of our business, we collect and store sensitive data, including IP and other proprietary information about our business and that of our customers, suppliers and business partners. Secure maintenance, processing and transmission of this information is critical to our operations and business strategy. We may be subject to disruptions, breaches or cyber-attacks of our secured networks and information technology systems caused by illegal hacking, criminal fraud or impersonation, computer viruses, acts of vandalism or terrorism or employee error, and our security measures or those of any third party service providers we use may not detect or prevent such security breaches. We may incur significant costs to eliminate or alleviate cybersecurity breaches and vulnerabilities, which could be significant, and our efforts to protect against such breaches or vulnerabilities may not be successful and could result in system interruptions that may materially impede our sales, manufacturing, distribution, finance or other critical functions. Any such compromise of our information security could also result in the unauthorized publication of our confidential business or proprietary information or that of other parties with which we do business, an interruption in our operations, the unauthorized transfer of cash or other assets, the unauthorized release of customer or employee data or a violation of privacy or other laws in the jurisdictions in which we operate. Any of the foregoing could irreparably damage our reputation and business and/or expose us to material monetary liability, which could have a material adverse effect on our results of operations.

You may not be able to bring an action or enforce any judgment obtained in United States courts, or bring an action in any other jurisdiction, against us or our subsidiaries or our directors, officers or independent auditors that are organized or residing in jurisdictions other than the United States.

Most of our subsidiaries are organized or incorporated outside of the U.S. and some of our directors and executive officers as well as our independent auditors are organized or reside outside of the U.S. Most of our and our subsidiaries’ assets are located outside of the U.S. and in particular, in Korea. Accordingly, any judgment obtained in the U.S. against us or our subsidiaries may not be collectible in the U.S. As a result, it may not be possible for you to effect service of process within the U.S. upon these persons or to enforce against them or us court judgments obtained in the U.S. that are predicated upon the civil liability provisions of the federal securities laws of the U.S. or of the securities laws of any state of the U.S. In particular, there is doubt as to the enforceability in Korea or any other jurisdictions outside the U.S., either in original actions or in actions for enforcement of judgments of U.S. courts, of civil liabilities predicated on the federal securities laws of the U.S. or the securities laws of any state of the U.S.

We are a holding company and depend on the business of our subsidiaries to make payments to us.

We are a holding company with no independent operations of our own. Our subsidiaries conduct substantially all of the operations necessary to fund our obligations. Our ability to pay dividends or to make payments on any future obligations will depend on our subsidiaries’ cash flow and their payment of funds to us. Our subsidiaries’ ability to make payments to us will depend on:

We cannot assure that the operating results of our subsidiaries at any given time will be sufficient to make distributions or other payments to us.

We may at times need to incur impairment, restructuring and other restructuring related charges, which could materially affect our results of operations and financial condition.

During industry downturns and for other reasons, we may need to record impairment, restructuring or other restructuring related charges. In the future, we may need to record additional impairment charges or to further restructure our business or incur additional restructuring charges, any of which could have a material adverse effect on our results of operations or financial condition.

We are subject to litigation risks, which may be costly to defend and the outcome of which is uncertain.

All industries, including the semiconductor industry, are subject to legal claims, with and without merit, that may be particularly costly and which may divert the attention of our management and our resources in general. We are involved in a variety of legal matters, most of which we consider routine matters that arise in the normal course of business. These routine matters typically fall into broad categories such as those involving customers, employment and labor and intellectual property. Even if the final outcome of these legal claims does not have a material adverse effect on our financial position, results of operations or cash flows, defense and settlement costs can be substantial. Due to the inherent uncertainty of the litigation process, the resolution of any particular legal claim or proceeding could have a material effect on our business, financial condition, results of operations or cash flows.

The price of our common stock may be volatile and you may lose all or a part of your investment.

The trading price of our common stock might be subject to wide fluctuations. Factors, some of which are beyond our control, that could affect the trading price of our common stock may include:

In the past, following periods of volatility in the market price of a public company’s securities, securities class action litigation often has been instituted against the public company. Regardless of its outcome, this type of litigation could result in substantial costs to us and a likely diversion of our management’s attention. You may not receive a positive return on your investment when you sell your shares, and you could lose some or the entire amount of your investment.

We cannot guarantee that our share repurchase program will be successfully consummated, or that it will enhance shareholder value, and share repurchases could affect the price of our common stock.

On July 19, 2023, the Board of Directors authorized us to repurchase up to $50 million of our outstanding common stock. Purchases have been and will be made in the open market or through privately negotiated transactions, depending upon market conditions and other factors. In connection with the repurchase program, we established a stock trading plan with Needham & Company, LLC in accordance with Rule 10b5-1 under the Securities Exchange Act. This share repurchase program could affect the price of our common stock, increase volatility and diminish our cash reserves. The IRA enacted in August 2022 imposes a 1% excise tax on the fair market value of stock repurchases made by covered corporations after December 31, 2022. The total taxable value of shares repurchased is reduced by the fair market value of any newly issued shares during the taxable year.

See “Item 8. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 13. Stock Repurchases” for more information.

Provisions in our charter documents and Delaware Law may make it difficult for a third party to acquire us and could depress the price of our common stock.

Provisions in our certificate of incorporation and bylaws may have the effect of delaying or preventing a change of control or changes in our management. Among other things, our certificate of incorporation and bylaws:

In addition, we are subject to the provisions of Section 203 of the Delaware General Corporation Law (the “DGCL”), regulating corporate takeovers and which has an anti-takeover effect with respect to transactions not approved in advance by our Board of Directors, including discouraging takeover attempts that might result in a premium over the market price for shares of our common stock. In general, those provisions prohibit a Delaware corporation from engaging in any business combination with any interested stockholder for a period of three years following the date that the stockholder became an interested stockholder, unless:

In general, DGCL Section 203 defines a business combination to include the following:

In general, DGCL Section 203 defines an interested stockholder as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by any such entity or person.

A Delaware corporation may opt out of this provision by express provision in its original certificate of incorporation or by amendment to its certificate of incorporation or bylaws approved by its stockholders. However, we have not opted out of, and do not currently intend to opt out of, this provision.

We have not historically paid dividends and do not currently have any dividend or distribution policy, and therefore, investors may need to rely on sales of their common stock as the only way to realize any future gains on their investments.

We have not historically paid cash dividends and do not currently have any dividend or distribution policy. Any determination to pay dividends in the future will be at the discretion of our Board of Directors. Accordingly, unless the Board implements a future dividend or distribution policy, investors must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any future gains on their investments.

Our indebtedness and liabilities could limit the cash flow available for our operations, expose us to risks that could adversely affect our business, financial condition and results of operations and impair our ability to satisfy our obligations under our debt instruments when they come due.

As of December 31, 2025, we had approximately $27.9 million aggregate principal amount of indebtedness outstanding under the working capital term loan (the "Term Loan") borrowed pursuant to the Loan Agreement, which is secured by a pledge of the properties of our fabrication facility in Gumi ("Fab3"). We also had approximately $16.7 million aggregate principal amount of indebtedness outstanding under the Equipment Financing Credit Agreement, which provides financing for capital expenditures of MSK (the "CAPEX Loans"). The CAPEX Loans are secured by a pledge of our certain machinery and equipment owned by MSK, which are located in its fabrication facility in Gumi, Korea. We may also incur additional indebtedness to meet future financing needs. Our indebtedness could have significant negative consequences for our security holders and our business, results of operations and financial condition by, among other things:

Our business may not generate sufficient funds, and we may otherwise be unable to maintain sufficient cash reserves, to pay amounts due under our indebtedness and our cash needs may increase in the future. If we are unable to pay our indebtedness when due, including the Term Loan and CAPEX Loans, the lenders may declare default and invoke remedies that could include the foreclosure on pledged collateral to satisfy such indebtedness, which would have a material adverse effect on our financial condition and results of operations.

Item 1B. Unresolved Staff Comments

Not applicable.

Item 2. Properties

Our manufacturing operations take place in a single fabrication facility located in Gumi, Korea. Our facility has a capacity of approximately 36,000 eight-inch equivalent wafers per month. We manufacture wafers utilizing geometries ranging from 0.13 to 0.35 microns. The Gumi facility has one main building with 41,022 square meters devoted to manufacturing, testing and packaging.

In addition to our fabrication facility in Gumi, we lease facilities in Cheongju and Seoul, Korea. Each of these facilities includes administration, sales and marketing and research and development functions. We lease sales and marketing offices through our subsidiaries in several other countries.

The ownership of our wafer manufacturing assets is an important component of our business strategy. Maintaining manufacturing control enables us to develop proprietary, differentiated products and results in higher production yields, as well as shortened design and production cycles. We believe our facilities are suitable and adequate for the conduct of our business for the foreseeable future and that we have sufficient production capacity to service our business as currently contemplated without significant capital investment.

All of our assembly, test and packaging services for our Power Analog Solutions and Power IC businesses are outsourced with the balance handled in-house. The independent providers of these outsourced services are located in Korea and China. The relative cost of outsourced services, as compared to in-house services, depends upon many factors specific to each product and circumstance. However, we generally incur higher costs for outsourced services, which can result in lower margins.

Certain of our property, plant and equipment, including manufacturing facilities and related equipment, are pledged as collateral for the Company’s long-term borrowings. For additional information regarding these arrangements, including the related collateral and terms of the borrowings, see “Note 11. Long-Term Borrowings” to our consolidated financial statements under "Item 8. Financial Statements and Supplementary Data" contained elsewhere in this Report.

Item 3. Legal Proceedings

We are involved in a variety of legal matters, most of which we consider routine matters that arise in the normal course of business. These routine matters typically fall into broad categories such as those involving customers, employment and labor and intellectual property. Intellectual property litigation and infringement claims, in particular, could cause us to incur significant expenses

or prevent us from selling our products. We are currently not involved in any legal proceedings that we believe would have a material adverse effect on our business, financial condition or results of operations.

See also “Item 1A. Risk Factors” in this Report for additional information.

Item 4. Mine Safety Disclosures

Not applicable.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Information

Our common stock is listed on the New York Stock Exchange under the symbol “MX.”

Total Return to Stockholders (Including Reinvestment of Dividends)

Indexed Returns

Holders

The approximate number of record holders of our outstanding common stock as of February 28, 2025 was 66. This number does not include beneficial owners for whom shares are held by nominees in street name.

Stock-Based Compensation

For information on securities authorized for issuance under our equity compensation plans, see Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Dividends

We have not historically paid any cash dividends on our common stock. Our Board of Directors continuously evaluates our capital allocation strategy and liquidity targets, but has not currently implemented any dividend or distribution policy. Any determination to pay dividends in the future will be at the discretion of our Board of Directors.

Issuer Purchases of Equity Securities

The following table shows the monthly activity related to our repurchases of common stock for the quarter ended December 31, 2025.

Item 6. [Reserved]

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the audited consolidated financial statements, together in each case with the related notes, included elsewhere in this Report. This discussion and analysis contains, in addition to historical information, forward-looking statements that include risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of certain factors, including those set forth under the heading “Risk Factors” and elsewhere in this Report. We have reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations, reflecting the shutdown of the Display business and transition into a pure-play Power company. Unless otherwise stated, information in this section relates to our continuing operations. The consolidated statements of cash flows have not been adjusted to separately disclose cash flows related to discontinued operations.

Overview

We are a designer and manufacturer of analog and mixed-signal power semiconductor platform solutions for various applications, including industrial, automotive, communication, consumer and computing. We have a proven record with about 45 years of operating history, a portfolio of more than 950 registered patents and pending applications and extensive engineering and manufacturing process expertise.

We develop and manufacture Power Analog Solutions products and develop Power integrated circuit (“IC”) products. Power Analog Solutions products include metal oxide semiconductor field effect transistors (“MOSFETs”) and insulated-gate bipolar transistors (“IGBTs”) for a range of devices, including televisions, smartphones, mobile phones, wearable devices, desktop PCs, notebook PCs, tablet PCs, home appliance, other consumer electronics, automotive and industrial applications such as power suppliers, e-bikes, photovoltaic inverters, LED lighting and motor drives.

Our Power IC products provide Power IC solutions to major television suppliers and large panel display suppliers. These products include AC-DC/DC-DC converters, LED drivers, regulators, power management integrated circuits (“PMICs”) and level shifter for a range of devices, including televisions, wearable devices, notebooks, tablet PCs and others consumer electronics, as well as automotive applications.

Our wide variety of analog and mixed-signal power semiconductor products combined with our mature technology platform allow us to address multiple high-growth end markets and rapidly develop and introduce new products and services in response to market demands. Our design center and substantial manufacturing operations in Korea place us at the core of the global electronics device supply chain. We believe this enables us to quickly and efficiently respond to our customers’ needs, and allows us to better serve and capture additional demand from existing and new customers. Certain of our Power IC products are produced using an external foundry. Through strategic cooperation with an external foundry, we seek to ensure we outsource wafers at competitive prices and produce quality products.

To maintain and increase our profitability, we must accurately forecast trends in demand for electronics devices that incorporate semiconductor products we produce. We must understand our customers’ needs as well as the likely end market trends and demand in the markets they serve. We must also invest in relevant research and development activities and purchase necessary materials on a timely basis to meet our customers’ demand while maintaining our target margins and cash flow.

The semiconductor markets in which we participate are highly competitive. The prices of our products tend to decrease regularly over their useful lives, and such price decreases can be significant as new generations of products are introduced by us or our competitors. We strive to offset the impact of declining selling prices for existing products through cost reductions and the introduction of new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to mitigate the risk of losses from product obsolescence.

Demand for our products and services is driven by overall demand for industrial, automotive, communication, consumer and computing products and can be adversely affected by periods of weak consumer and enterprise spending or by market share losses by our customers. In order to mitigate the impact of market volatility on our business, we continually strive to diversify our portfolio of products, customers, and target applications. We also expect that new competitors will emerge in these markets that may place increased pressure on the pricing for our products and services. While we believe we are well positioned competitively to compete in these markets and against these new competitors as a result of our long operating history, existing manufacturing capacity and our worldwide customer base, if we are not effective in competing in these markets, our operating results may be adversely affected.

Net sales for our Power Analog Solutions and Power IC products are driven by design wins in which we are selected by an electronics original equipment manufacturer (“OEM”) or other potential customers to supply its demand for a particular product. A customer will often have more than one supplier designed into multi-source components for a particular product line. Once we have

design wins and the products enter into mass production, we often specify the pricing of a particular product for a set period of time, with periodic discussions and renegotiations of pricing with our customers. In any given period, our net sales depend heavily upon the end-market demand for the goods in which our products are used, the inventory levels maintained by our customers and, in some cases, allocation of demand for components for a particular product among selected qualified suppliers.

In contrast to completely fabless semiconductor companies, our internal manufacturing capacity provides us with greater control over certain manufacturing costs and the ability to implement process and production improvements for our internally manufactured products, which can favorably impact gross profit margins. Our internal manufacturing capacity also allows for better control over delivery schedules, improved consistency over product quality and reliability and improved ability to protect intellectual property from misappropriation on these internally manufactured products. However, having internal manufacturing capacity exposes us to the risk of under-utilization of manufacturing capacity that results in lower gross profit margins, particularly during downturns in the semiconductor industry.

Our Power Analog Solutions and Power IC businesses require investments in capital equipment. Analog and mixed-signal manufacturing facilities and processes are typically distinguished by the design and process implementation expertise rather than the use of the most advanced equipment. Many of these processes also tend to migrate more slowly to smaller geometries due to technological barriers and increased costs. For example, some of our products use high-voltage technology that requires larger geometries and that may not migrate to smaller geometries for several years, if at all. As a result, our manufacturing base and strategy do not require substantial investment in leading edge process equipment for those products, allowing us to utilize our facilities and equipment over an extended period of time with moderate required capital investments. In addition, we are less likely to experience significant industry overcapacity, which can cause product prices to decline significantly. In general, we seek to invest in manufacturing capacity that can be used for multiple high-value applications over an extended period of time. In addition, we outsource manufacturing of those Power IC products which do require advanced technology and 8-inch wafer capacity. We believe this balanced capital investment strategy enables us to optimize our capital investments and facilitates more diversified product and service offerings.

As we expanded our design capabilities to products that require lower geometries unavailable at our existing manufacturing facilities, we have started outsourcing 8-inch wafer for Power IC products after the sale of our fabrication facility located in Cheongju, Korea in 2020. This additional source of manufacturing has been an important part of our supply chain management. By outsourcing manufacturing of Power IC products to an external foundry, we have been able to adapt dynamically to changing customer requirements and address growing markets without substantial capital investments by us. However, relying on the external foundry exposes us to the risk of being unable to secure manufacturing capacity, particularly during global shortages of foundry services. Although we work strategically with the external foundry to ensure long-term wafer capacity, if these efforts are at any time unsuccessful, our ability to deliver products to our customers may be negatively impacted, which would adversely affect our relationship with customers and opportunities to secure new design-wins.

Our success going forward will depend upon our ability to adapt to future challenges such as the emergence of new competitors for our products and services or the consolidation of current competitors. Additionally, we must innovate to remain ahead of, or at least rapidly adapt to, technological breakthroughs that may lead to a significant change in the technology necessary to deliver our products and services. We believe that our established relationships and close collaboration with leading customers enhance our awareness of new product opportunities, market and technology trends and improve our ability to adapt and grow successfully.

Recent Developments

Shut-Down of Display business

On March 7, 2025, our Board of Directors authorized a strategy to transition to a pure-play Power company, focusing our investments on the Power Analog Solutions and Power IC businesses to enhance profitability and maximize shareholder value. As part of this strategy, we explored all strategic options including a sale, merger, joint venture, licensing, and wind-down for our Display business (Display IC products). However, we were not able to consummate a transaction following several months of discussions with several interested parties on terms that our Board of Directors believed were in the best interests of the Company and our stockholders.

Accordingly, on April 6, 2025, our Board of Directors unanimously approved the plan to shut down our Display business (the “Discontinued Business”) by the end of the second quarter of 2025, including the liquidation of MMS, our indirect wholly owned subsidiary that operated the Discontinued Business. For additional information regarding the announcement of our plan to shut down display business, see the Company’s Current Report on Form 8-K filed on April 8, 2025.

Although we have discontinued our Display business, certain limited activities remain solely for the purpose of completing the orderly wind-down of operations and fulfilling pre-existing customer obligations, including the sale of “end of life” (“EOL”) Display

products, which is being conducted by MSK. A small team has been retained exclusively to facilitate these wind-down activities. The sale of EOL Display products generated cash inflow of $5.8 million during the second half of 2025 and is expected to generate cash inflow of over $10 million in the next two years, depending upon customer demand. In addition, we continue to evaluate the potential monetization of the intellectual property assets of the Discontinued Business. Any proceeds from such monetization, if realized, could result in additional cash inflows.

The total cash cost of the liquidation of MMS was approximately $13 million, which is expected to be offset by the cash inflow that may be generated as described above. The one-time liquidation cost consisted of statutory severance and other employee-related costs, contract termination charges and other associated costs. Of this total cash cost, we paid $6.5 million of statutory severance and other employee-related costs in the second quarter of 2025. Further, we originally expected to pay certain contract termination charges in full along with the statutory severance and other employee-related costs, but negotiated with the respective vendors for those contract termination charges totaling $6.0 million to be paid over the duration of the remaining existing contract terms.

CAPEX Loans

On December 16, 2024, MSK executed a Standard Credit Agreement (as amended) (together with its General Terms and Conditions, the “Equipment Financing Credit Agreement”) with Korea Development Bank (“KDB”). In connection with the Equipment Financing Credit Agreement, on December 8, 2024, MSK amended the Kun-Pledge Agreement (the “Equipment Pledge Agreement”) with KDB, originally executed on or about March 26, 2024, to increase the maximum secured amount and to expand the scope of collateral to include certain machinery and equipment owned by MSK, which are located in its fabrication facility in Gumi, Korea (“Fab 3 machinery and equipment”).

The Equipment Financing Credit Agreement provides for loans for MSK’s capital expenditures (the “CAPEX Loans”) up to an aggregate of KRW 38,000,000,000 ($26.5 million based on the KRW/USD exchange rate of 1,432.7:1 as of December 16, 2024 as quoted by KEB Hana Bank), which have been and will be funded directly to capital expenditure supply vendors by KDB upon the submission of a request form by MSK with the necessary evidence such as purchase agreement, invoice and other documentation, as applicable.

The CAPEX Loans bear interest at a fixed rate quoted by the treasury bond market yield (a six-year Korea treasury bill rate). CAPEX Loans mature in ten years from the initial loan disbursement date, with an initial two-year (measured from the first loan disbursement date) interest-only payment period during which only interest is paid monthly, followed by eight years of amortizing payments where the principal is repaid in equal installments every three months and interest is paid monthly. The Equipment Financing Credit Agreement contains customary representations of MSK in connection with the execution of the agreement and with each borrowing of CAPEX Loans and customary terms and conditions for a secured equipment financing loan of this type in Korea. All obligations of MSK under the Equipment Financing Credit Agreement and CAPEX Loans are secured by certain Fab 3 machinery and equipment pursuant to the Equipment Pledge Agreement.

As of December 31, 2025, the aggregate principal amount outstanding under the CAPEX Loans was approximately $16.7 million, which bears a weighted average interest rate of 2.91% per annum and matures on June 26, 2035.

Macroeconomic Industry Conditions

The semiconductor industry continues to face a number of macroeconomic challenges, including rising inflation, increased interest rates, supply chain disruptions, inventory corrections, shifting customer and end-user demand, fluctuations in currency rates, and geopolitical tensions, including without limitation ongoing conflicts involving Russia and Ukraine, sustained military action and conflicts in the Middle East, and trade conflicts or trade wars (especially those between the United States and China) including those arising directly or indirectly from tariffs recently imposed by the United States, any one or more of which may cause (if they have not already caused) volatility and unpredictability in the supply chain or market for semiconductor products and end-user demand. The length and severity of these macroeconomic events and their overall impact on our business, results of operations and financial condition remain uncertain.

Developments in Export Control Regulations

On October 7, 2022, the Bureau of Industry and Security (BIS) of the U.S. Department of Commerce published changes to U.S. export control regulations (U.S. Export Regulations), including new restrictions on Chinese entities’ ability to obtain advanced computing chips, develop and maintain supercomputers, and manufacture advanced semiconductors. Further, on October 12, 2022, a new rule went into effect requiring U.S. persons to obtain a license prior to engaging in certain activities that could “support” certain end-uses and end-users, including those related to weapons of mass destruction. Additionally, on October 21, 2022, BIS brought into effect a series of new Foreign Direct Product (FDP) rules and various new controls on advanced computing items, significantly

expanding the scope of items that are subject to export control under the U.S. Export Regulations. More recently, on October 25, 2023, BIS published additional rules, which went into effect on November 17, 2023 to expand, clarify, and correct the rules published in October 2022. A further corrected and clarified version of these rules went into effect on April 4, 2024. On January 16, 2025, BIS published amendments and clarifications of the U.S. Export Regulations which further tightened controls of advanced computing items. On September 30, 2025, BIS published an “Affiliates Rule” to expand end-user controls to cover certain affiliates of entities designated on BIS Entity List or Military End User List or designated on the Specially Designated Nationals and Blocked Persons (SDN) List administered by the U.S. Department of the Treasury, Office of Foreign Assets Control. BIS subsequently delayed enforcement of the Affiliates Rule until November 2026. Based on our understanding of the U.S. Export Regulations and related rules currently in effect, we expect to invest additional resources and efforts in the screening of prospects, customers, and end-users in order to comply with the new Affiliates Rule; while we do not anticipate that the rest of the rules will have a material impact on our current business, we will continue reviewing and assessing these rules and regulations and their potential impact on our business. BIS has altered aspects of its semiconductor licensing policies to a case-by-case review, taking into account requirements such as export volume thresholds and third party testing requirements. Additional changes to the U.S. Export Regulations are expected, such as recently proposed rule changes that may expand restrictions on export transactions involving end users or end uses with military connections; but the scope or timing of such changes is uncertain. We will continue to monitor such developments, including potential additional trade restrictions, and other regulatory or policy changes by the U.S. and foreign governments.

Explanation and Reconciliation of Non-U.S. GAAP Measures

Adjusted EBITDA, Adjusted Operating Income (Loss) and Adjusted Net Income (Loss)

We use the terms Adjusted EBITDA, Adjusted Operating Income (Loss) and Adjusted Net Income (Loss) (including on a per share basis) in this Report. Adjusted EBITDA, as we define it, is a non-U.S. GAAP measure. We define Adjusted EBITDA for the periods indicated as EBITDA (as defined below), adjusted to exclude (i) equity-based compensation expense, (ii) foreign currency loss, net, (iii) derivative valuation loss (gain) and (iv) early termination and other charges. EBITDA for the periods indicated is defined as net income(loss) before interest income, interest expense, income tax benefit, net and depreciation and amortization.

See the footnotes to the table below for further information regarding these items. We present Adjusted EBITDA as a supplemental measure of our performance because:

We use Adjusted EBITDA in a number of ways, including:

We encourage you to evaluate each adjustment and the reasons we consider them appropriate. In evaluating Adjusted EBITDA, you should be aware that in the future we may incur expenses (income) similar to the adjustments in this presentation. Adjusted EBITDA is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to income (loss) from continuing operations or any other performance measure derived in accordance with U.S. GAAP, or as an alternative to cash flows

from operating activities as a measure of liquidity. A reconciliation of loss to Adjusted EBITDA from continuing operations is as follows:

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under U.S. GAAP. Some of these limitations are:

Because of these limitations, Adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We compensate for these limitations by relying primarily on our U.S. GAAP results and using Adjusted EBITDA only supplementally.

We present Adjusted Operating Income (Loss) as supplemental measures of our performance. We prepare Adjusted Operating Income (Loss) by adjusting operating income (loss) to eliminate the impact of equity-based compensation expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Operating Income (Loss) is useful to investors to provide a supplemental way to understand our underlying operating performance and allows investors to monitor and understand changes in our ability to generate income (loss) from ongoing business operations.

Adjusted Operating Income (Loss) is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to operating income (loss) or any other performance measure derived in accordance with U.S. GAAP. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Operating Income (Loss) differently than we do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Operating Income (Loss), you should be aware that in the future we may incur expenses (income) similar to the adjustments in this presentation. We define Adjusted Operating Income (Loss) for the periods indicated as operating income (loss) adjusted to exclude (i) equity-based compensation expense and (ii) early termination and other charges.

The following table summarizes the adjustments to operating loss that we make in order to calculate Adjusted Operating Loss for the periods indicated:

We present Adjusted Net Income (Loss) (including on a per share basis) as a further supplemental measure of our performance. We prepare Adjusted Net Income (Loss) (including on a per share basis) by adjusting net income (loss) to eliminate the impact of a number of non-cash expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Net Income (Loss) (including on a per share basis) is particularly useful because it reflects the impact of our asset base and capital structure on our operating performance. We present Adjusted Net Income (Loss) (including on a per share basis) for a number of reasons, including:

Adjusted Net Income (Loss) (including on a per share basis) is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to income (loss) from continuing operations or any other performance measure derived in accordance with U.S. GAAP, or as an alternative to cash flows from operating activities as a measure of liquidity. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Net Income (Loss) (including on a per share basis) differently than we do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Net Income (Loss) (including on a per share basis), you should be aware that in the future we may incur expenses (income) similar to the adjustments in this presentation. We define Adjusted Net Income (Loss) (including on a per share basis); for the periods indicated as net income (loss), adjusted to exclude (i) equity-based compensation expense, (ii) foreign currency loss, net, (iii) derivative valuation loss (gain), net, (iv) early termination and other charges and (v) income tax effect on non-GAAP adjustments.

The following table summarizes the adjustments to loss from continuing operations that we make in order to calculate Adjusted Loss (including on a per share basis) from continuing operations for the periods indicated:

We believe that all adjustments to income (loss) from continuing operations used to calculate Adjusted Net Income (Loss) from continuing operations was applied consistently to the periods presented.

Adjusted Net Income (Loss) has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under U.S. GAAP. Some of these limitations are:

Because of these limitations, Adjusted Net Income (Loss) should not be considered as a measure of profitability of our business. We compensate for these limitations by relying primarily on our U.S. GAAP results and using Adjusted Net Income (Loss) only as a supplement.

Factors Affecting Our Results of Operations

Net Sales. We derive substantially all of our sales (net of sales returns and allowances) from our Power Solutions business. Our product inventory is primarily located in Korea and is available for drop shipment globally. Outside of Korea, we maintain limited product inventory, and our sales representatives generally relay orders to our fabrication facility in Korea for fulfillment. We have strategically located our sales offices near concentrations of major customers. Our sales offices are located in Korea, Japan, Taiwan and Greater China. Our network of authorized agents and distributors is in the United States, Europe and the Asia Pacific region.

We recognize revenue when a customer obtains control of the product, which is generally upon product shipment, delivery at the customer’s location or upon customer acceptance, depending on the terms of the arrangement. For the years ended December 31, 2025 and 2024, our products were sold to 185 and 165 end customers, respectively, and our net sales to our ten largest customers represented 74.3% and 73.4% of our net sales – Power Solutions business, respectively.

Gross Profit. Our overall gross profit generally fluctuates as a result of changes in overall sales volumes and in the average selling prices of our products and services. Other factors that influence our gross profit include changes in product mix, the introduction of new products and services and subsequent generations of existing products and services, shifts in the utilization of our manufacturing facility and the yields achieved by our manufacturing operations, changes in material, labor and other manufacturing costs including outsourced manufacturing expenses, and variation in depreciation expense.

Average Selling Prices (“ASP”). Average selling prices for our products tend to be highest at the time of introduction of new products which utilize the latest technology and tend to decrease over time as such products mature in the market and are replaced by new generation products. We strive to offset the impact of declining selling prices for existing products through our product development activities and by introducing new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to preclude losses from product and productive capacity obsolescence.

Material Costs. Our material costs consist of costs of raw materials, such as silicon wafers, chemicals, gases and tape and packaging supplies. We use processes that require specialized raw materials, such as silicon wafers, that are generally available from a limited number of suppliers. If demand increases or supplies decrease, the costs of our raw materials could increase significantly.

Labor Costs. A significant portion of our employees are located in Korea. Under Korean labor laws, most employees and certain executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of December 31, 2025, 97% of our employees were eligible for severance benefits.

Depreciation Expense. We periodically evaluate the carrying values of long-lived assets, including property, plant and equipment and intangible assets, as well as the related depreciation periods. We depreciate our property, plant and equipment using the straight-line method over the estimated useful lives of our assets. Depreciation rates vary from 30-40 years on buildings to 3-12 years for certain equipment and assets. Our evaluation of carrying values is based on various analyses including cash flow and profitability projections. If our projections indicate that future undiscounted cash flows are not sufficient to recover the carrying value of the related long-lived assets, the carrying value of the assets is impaired and will be reduced, with the reduction charged to expense so that the carrying value is equal to fair value.

Selling Expenses. We sell our products worldwide through a direct sales force as well as a network of sales agents and representatives to OEMs, including major branded customers and contract manufacturers, and indirectly through distributors. Selling expenses consist primarily of the personnel costs for the members of our direct sales force, a network of sales representatives and other costs of distribution. Personnel costs include base salary, benefits and incentive compensation.

General and Administrative Expenses. General and administrative expenses consist of the costs of various corporate operations, including finance, legal, human resources and other administrative functions. These expenses primarily consist of payroll-related expenses, consulting and other professional fees and office facility-related expenses.

Research and Development. The rapid technological change and product obsolescence that characterize our industry require us to make continuous investments in research and development. Product development time frames vary but, in general, we incur research and development costs one to two years before generating sales from the associated new products. These expenses include personnel costs for members of our engineering workforce, cost of photomasks, silicon wafers and other non-recurring engineering charges related to product design. Additionally, we develop base line process technology through experimentation and through the design and use of characterization wafers that help achieve commercially feasible yields for new products. The majority of research and development expenses of our Power IC business are material and design-related costs for Power IC products. Power IC uses standard BCD process technologies which can be sourced from multiple foundries. The majority of research and development expenses of our Power Analog Solutions business are certain equipment, material and design-related costs for Power Analog Solutions products.

Impact of Foreign Currency Exchange Rates on Reported Results of Operations. Historically, a portion of our revenues and cost of sales and greater than the majority of our operating expenses have been denominated in non-U.S. currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations in U.S. dollars converted from our non-U.S. revenues and expenses based on monthly average exchange rates, changes in the exchange rate between the Korean won and the U.S. dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the amount of our consolidated revenues and expenses that are in U.S. dollars relative to Korean won, depreciation in the U.S. dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and therefore could cause our profit margins and operating income to appear to decline materially, particularly relative to prior periods. The converse is true if the U.S. dollar were to appreciate relative to the Korean won. Moreover, our foreign currency gain or loss may be affected by changes in the exchange rate between the Korean won and the U.S. dollar, including those related to the intercompany long-term loans to our Korean subsidiary, Magnachip Semiconductor, Ltd. or MSK, which is denominated in U.S. dollars. As of December 31, 2025, the outstanding intercompany loan balance including accrued interest between MSK and our Dutch subsidiary was $75.1 million. While the intercompany loan balance including accrued interest has decreased compared to prior periods, changes in exchange rates could continue to affect our reported foreign currency gain or loss. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of our stock could be adversely affected.

From time to time, we may engage in exchange rate hedging activities in an effort to mitigate the impact of exchange rate fluctuations. Our Korean subsidiary, Magnachip Semiconductor, Ltd., enters into foreign currency zero cost collar contracts in order to mitigate a portion of the impact of U.S. dollar-Korean won exchange rate fluctuations on our operating results. Obligations under these foreign currency zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These zero cost collar contracts may be terminated by a counterparty in a number of circumstances, including if our total cash and cash equivalents is less than $30.0 million at the end of a fiscal quarter unless a waiver is obtained from the counterparty. We cannot assure that any hedging technique we implement will be effective. If our hedging activities are not effective, changes in currency exchange rates may have a more significant impact on our results of operations. See “Note 10. Derivative Financial Instruments” to

our consolidated financial statements under “Item 8. Financial Statements and Supplementary Data” for additional information regarding our foreign exchange hedging activities.

Foreign Currency Gain or Loss. Foreign currency translation gains or losses on transactions by us or our subsidiaries in a currency other than our or our subsidiaries’ functional currency are included in foreign currency gain (loss), net in our consolidated statements of operations. A substantial portion of this net foreign currency gain or loss relates to non-cash translation gain or loss related to the principal balance of intercompany balances at our Korean subsidiary, Magnachip Semiconductor, Ltd., that are denominated in U.S. dollars. This gain or loss results from fluctuations in the exchange rate between the Korean won and U.S. dollar.

Income Taxes. We record our income taxes in each of the tax jurisdictions in which we operate. This process involves using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax basis of our assets and liabilities. We exercise significant management judgment in determining our provision for income taxes, deferred tax assets and liabilities. We assess whether it is more likely than not that the deferred tax assets existing at the period-end will be realized in future periods. In such assessment, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent results of operations. In the event we were to determine that we would be able to realize the deferred income tax assets in the future in excess of their net recorded amount, we would adjust the valuation allowance, which would reduce the provision for income taxes.

We are subject to income- or non-income-based tax examinations by tax authorities of the U.S., Korea and multiple other foreign jurisdictions for all open tax years. Significant estimates and judgments are required in determining our worldwide provision for income- or non-income based taxes. Some of these estimates are based on interpretations of existing tax laws or regulations. The ultimate amount of tax liability may be uncertain as a result.

Capital Expenditures. We primarily invest in manufacturing equipment, software design tools and other tangible assets mainly for fabrication facility maintenance, capacity expansion and technology improvement. Capacity expansions and technology improvements typically occur in anticipation of increases in demand. We typically pay for capital expenditures in partial installments with portions due on order, delivery and final acceptance. Our capital expenditures mainly include our payments for the purchase of property, plant and equipment.

Inventories. We monitor our inventory levels in light of product development changes and market expectations. We may be required to take additional charges for quantities in excess of demand, cost in excess of market value and product age. Our analysis may take into consideration historical usage, expected demand, anticipated sales price, new product development schedules, the effect new products might have on the sales of existing products, product age, customer design activity, customer concentration and other factors. These forecasts require us to estimate our ability to predict demand for current and future products and compare those estimates with our current inventory levels and inventory purchase commitments. Our forecasts for our inventory may differ from actual inventory use.

Results of Operations

Comparison of Years Ended December 31, 2025 and 2024

The following table sets forth consolidated results of operations for the years ended December 31, 2025 and 2024: