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AOSL is like a more specialized Texas Instruments, focusing on designing the power management chips and components that regulate electricity in nearly all modern electronics.

AOSL is similar to a focused version of Infineon Technologies, providing the critical power semiconductors that control electricity flow in devices from smartphones to industrial systems.

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• Power Discrete Products: These include various types of MOSFETs (e.g., MOSFET, SRFETs, XSFET, ESD protected, high/mid-voltage) and Insulated Gate Bipolar Transistors (IGBTs) used across a wide range of applications from consumer electronics to industrial drives.
• Power ICs: Integrated circuits designed to deliver power, as well as control and regulate power management variables like current flow and voltage levels in electronic devices.
• aMOS5 MOSFET: A specific series of MOSFETs developed for applications such as quick chargers, adapters, PC power, server, and industrial power systems.
• Transient Voltage Suppressors (TVS): Devices used to protect sensitive electronic components from damaging voltage spikes and transients.
• EZBuck Regulators: Regulators that provide efficient power conversion and control for various electronic systems.
• SOA MOSFET: MOSFETs specifically engineered for hot swap applications, ensuring reliable operation within their Safe Operating Area.
• RigidCSP: Products primarily utilized for robust battery management solutions.
• Type-C Power Delivery Protection Switches: Switches designed to safeguard USB Type-C power delivery circuits from overcurrent or overvoltage conditions.

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Major Customers of Alpha & Omega Semiconductor (AOSL)

Alpha & Omega Semiconductor (AOSL) primarily operates as a business-to-business (B2B) company, supplying power semiconductor products to other companies that manufacture electronic devices and systems.

Based on the provided company description, specific names of major customer companies are not explicitly identified. However, the description details the broad range of applications and end products that utilize AOSL's components, allowing for the identification of the categories of manufacturers that would constitute their customer base.

Customer Categories

AOSL's products are integrated into various electronic systems, indicating that their customers are manufacturers across the following key sectors:

• Computing and Enterprise Hardware Manufacturers: Companies that produce notebooks, desktop computers, servers, data center equipment, graphics cards, gaming consoles, and networking equipment.
• Consumer Electronics and Communication Device Manufacturers: Manufacturers of smartphones, battery packs, televisions, flat panel displays, DVD/Blu-Ray players, set-top boxes, AC adapters, and communication base stations.
• Industrial, Automotive, and Appliance Manufacturers: Businesses involved in the production of industrial motor control systems, power tools, electric vehicles (e-vehicles), white goods (major home appliances), industrial motor drives, uninterruptible power supply (UPS) systems, solar inverters, and industrial welding equipment.

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Stephen C. Chang – Chief Executive Officer

Appointed CEO in March 2023, Stephen C. Chang previously served as President from January 2021 to February 2023. Before that, he held various management positions within Alpha & Omega Semiconductor, including Executive Vice President of Product Line Management, Senior VP of Marketing, VP of the MOSFET Product Line, and Senior Director of Product Marketing. Mr. Chang has over 20 years of industry experience. He holds a B.A. in Electrical Engineering from the University of California, Berkeley, and an M.B.A. from Santa Clara University.

Yifan Liang – Chief Financial Officer and Corporate Secretary

Yifan Liang has served as Chief Financial Officer since August 2014 and Corporate Secretary since November 2013. He was the Interim Chief Financial Officer from November 2013 to August 2014. Mr. Liang joined Alpha & Omega Semiconductor in August 2004 as Corporate Controller. Prior to joining the company, he held various positions at PricewaterhouseCoopers LLP (PwC) from 1995 to 2004, including Audit Manager in PwC's San Jose office. He received his B.S. in Management Information System from the People's University of China and an M.A. in Finance and Accounting from the University of Alabama.

Mike F. Chang Ph.D. – Chairman of the Board and Executive Vice President of Strategic Initiatives

Dr. Mike F. Chang is the founder of Alpha & Omega Semiconductor. He previously served as Chief Executive Officer from the company's founding until March 2023. Dr. Chang has extensive experience in technology development and business operations in the power semiconductor industry. Before founding the company, he was Executive Vice President at Siliconix Incorporated (a subsidiary of Vishay Intertechnology Inc.) from 1998 to 2000, and held various management positions there from 1987 to 1998. Earlier in his career, he focused on product research and development at General Electric Company from 1974 to 1987. He earned his B.S. in electrical engineering from National Cheng Kung University, Taiwan, and his M.S. and Ph.D. in electrical engineering from the University of Missouri.

Wenjun Li Ph.D. – Chief Operating Officer

Dr. Wenjun Li has served as Chief Operating Officer since August 2021. Before this role, he held various management positions within the company since 2012, including Executive Vice President of World-Wide Manufacturing, Senior Vice President of World-Wide Manufacturing, Vice President of Front-End Operation, Director of Process Integration, and Senior Manager of Process Integration. Dr. Li holds a B.S. in Chemistry and an M.S. in Chemical Engineering from Taiyuan University of Technology, and a Ph.D. in Microelectronics & Solid-State Electronics from the Research Institute of Micro-Nanometer Technology at Shanghai Jiao Tong University.

Bing Xue Ph.D. – Executive Vice President of Worldwide Sales and Business Development

Dr. Bing Xue serves as the Executive Vice President of Worldwide Sales and Business Development.

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Key Risks to Alpha & Omega Semiconductor (AOSL)

1. Semiconductor Industry Volatility and Market Demand Fluctuations: Alpha & Omega Semiconductor operates within the highly cyclical and often unpredictable semiconductor industry. The company is susceptible to fluctuations in market demand and broader economic conditions, which can be influenced by technological changes and seasonality in its target markets, such as computing and consumer electronics. This volatility is evidenced by a reported decline in sales over the past three years and negative profitability metrics, including negative EPS, operating margin, and net margin. The decline in specific market segments, such as the PC market, also poses a direct risk.
2. Intense Competition: The power semiconductor market in which Alpha & Omega Semiconductor operates is highly competitive. The company faces numerous established competitors, including Power Integrations, Monolithic Power Systems, Taiwan Semiconductor, Texas Instruments, and Diodes, among others. Many of these competitors demonstrate stronger financial performance, with better net margins and return on equity compared to Alpha & Omega Semiconductor. This intense competition can exert pressure on pricing, market share, and ultimately, the company's profitability and ability to gain design wins for its products.
3. Supply Chain Dependencies and Geopolitical Risks: Alpha & Omega Semiconductor's business relies on a complex global supply chain for raw materials, manufacturing (including third-party foundries), and distribution. This makes the company vulnerable to various disruptions, including geopolitical tensions, trade disputes, and export restrictions, particularly between the United States and China where the company has significant operations and a joint venture. Such tensions can hinder the flow of essential materials and technologies, increase production costs, and disrupt global collaboration. The concentration of advanced chip fabrication in specific regions, such as Taiwan and South Korea, also presents a systemic risk to the broader semiconductor supply chain.

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Alpha & Omega Semiconductor (AOSL) operates in the broad power semiconductor market, with its main products falling into two categories: power discrete products (including MOSFETs) and power integrated circuits (ICs).

Addressable Market Sizes:

Power Semiconductor Market:

• The global power semiconductor market was valued at approximately USD 53.79 billion in 2025 and is projected to grow to over USD 86.79 billion by 2035, with a compound annual growth rate (CAGR) exceeding 4.9% from 2026 to 2035.
• Another estimate places the global power semiconductor market size at USD 54.94 billion in 2025, anticipating an increase to about USD 81.70 billion by 2034, at a CAGR of 4.51% from 2025 to 2034.
• The Asia Pacific region held the largest share of the global power semiconductor market in 2024, accounting for 41% of the market, and 51.35% in 2025. It is also expected to be the fastest-growing region.

MOSFET Market (Metal-Oxide-Semiconductor Field-Effect Transistors):

• The global MOSFETs market size was valued at USD 10.59 billion in 2024 and is forecast to reach USD 21.35 billion by 2033, growing at a CAGR of 8.1% during the period of 2026–2033.
• Another report indicates the global power MOSFET market size was estimated at USD 31.48 billion in 2025 and is expected to increase to USD 66.51 billion by 2033, with a CAGR of 9.80% from 2025 to 2033.
• North America held a significant share of the global Power MOSFET market, with a market size of USD 11.65 billion in 2025, representing more than 37% of the global revenue.

Power IC Market (Power Integrated Circuits / Power Management ICs):

• The global power management IC market size was estimated at USD 38.2 billion in 2023 and is projected to reach USD 59.63 billion by 2030, exhibiting a CAGR of 6.8% from 2024 to 2030.
• Another source reports the global power management IC market size was USD 40.86 billion in 2024 and is expected to exceed USD 79.11 billion by 2034, with a CAGR of 6.83% from 2025 to 2034.
• The Asia Pacific region was the dominant market for power management ICs in 2023, holding a 43.9% share of the global revenue, and 44% in 2024. North America is projected to hold the largest share of the global power management IC market over the forecast period.

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Alpha & Omega Semiconductor (AOSL) is anticipated to drive future revenue growth over the next 2-3 years through several key strategies and market trends:

1. Expansion in AI Data Centers and Advanced Computing Applications: Alpha & Omega Semiconductor is strategically investing in research and development for high-performance applications, particularly those related to Artificial Intelligence (AI) data centers. The company is actively shipping high-performance, medium-voltage MOSFET products for infrastructure programs, including hotspot power solutions for major hybrid-scale customers, and expanding its presence in AI platforms with medium-voltage solutions supporting 48V to 12V intermediate bus conversion. New product introductions, such as the 100V High Safe Operating Area MOSFET for AI server applications and wide-bandgap MOSFETs for 800V DC data-center power, are expected to contribute to this growth.
2. Increased Bill of Materials (BOM) Content in Smartphones: The company anticipates growth in the smartphone sector, especially driven by a rapid transition to higher charging currents. This shift is expected to enhance the bill of materials (BOM) content for battery protection solutions within smartphones. AOSL has observed robust performance in the communications sector, particularly with a leading U.S. smartphone manufacturer, by expanding its market share and increasing BOM content on premium platforms.
3. Shift to a Total Solutions Provider and Focus on High-Margin Power ICs: Alpha & Omega Semiconductor is actively transforming its business from being solely a component supplier to a provider of integrated power management solutions. This strategy focuses on leveraging high-performance silicon, advanced packaging, and intelligent Integrated Circuits (ICs) to expand market share and increase BOM content with existing and new customers. Power IC revenue has already demonstrated significant growth, reaching nearly 40% of total product revenue in Q1 FY2026 with a 37.3% year-over-year increase, indicating a successful strategic shift towards higher-margin Power IC solutions.
4. Launch of New Performance-Driven Products and Initiatives: The company is poised for accelerated growth with the launch of new products and initiatives, with a particular focus on performance-driven applications. Recent product announcements include the αMOS E2 600V Super Junction MOSFET platform for applications such as servers, telecom rectifiers, solar inverters, and industrial power systems. Additionally, new multi-phase controllers for GPUs/SoCs, IMVP9.3 CPU power stages, and USB Type-C PD3.1 EPR protection switches are expected to contribute to future revenue. The company maintains an active product development pipeline, having introduced over 100 new products in fiscal year 2025.

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Share Repurchases

• Alpha and Omega Semiconductor's Board of Directors approved a new share repurchase program in November 2025, authorizing the repurchase of up to $30 million of the company's outstanding common shares.
• The company repurchased $13.9 million in shares during a recent quarter, with $16 million remaining in a program at that time.

Outbound Investments

• In July 2025, Alpha and Omega Semiconductor entered into an agreement to sell approximately 20.3% of its equity interest in its Chongqing, China joint venture (CQJV) for an aggregate cash consideration of $150 million.
• The proceeds from the sale of the CQJV stake are planned to be used for investments in technology, research and development projects, and the acquisition of assets complementary to the company's business operations.
• The company received $94 million from the monetization of the joint venture in the September quarter and $11 million in the December quarter, with an additional $30 million after the quarter-end.

Capital Expenditures

• Capital expenditures for the fiscal fourth quarter of 2025 were $14.3 million, with expected capital expenditures ranging from $11 million to $13 million for the September quarter (fiscal Q1 2026).
• For the fiscal second quarter of 2026 (ended December 31, 2025), capital expenditures were $7.4 million, and the company expected them to range from $7 million to $9 million for the March quarter (fiscal Q3 2026).
• The company plans to increase its research and development (R&D) investments by 25% in 2026 to support targeted growth initiatives, particularly in high-performance markets and AI data centers.