Better Health for All

AOSL's core products, power semiconductors, are components for electronics and do not have a direct positive or negative health impact, resulting in a score of 0 for health impact core and harmful revenue share. Similarly, the company does not offer health-related products or services, making several KPIs (price accessibility, vulnerable reach, risk transparency, health innovation investment, health equity programs, healthcare workforce support, preventative health measures, healthcare data responsibility, global health crisis response, mental health initiatives, pharma patent flexibility, nutrition and food safety, healthcare education, addiction mitigation, clinical trial ethics) not applicable, thus scoring 0.

For safety record, the products do not have direct safety implications for physical or mental health, leading to a score of 0. For health externalities, AOSL demonstrates comprehensive remediation efforts for potential environmental impacts, which are indirect health externalities. The company achieved RoHS compliance in 2005, implements a 'Green Policy' to reduce halogen use, adheres to ISO 14001 environmental management systems, and aligns with ISO 14064-1 for greenhouse gas emission reduction programs.

Fair Money & Economic Opportunity

Alpha and Omega Semiconductor Limited (AOSL.US) designs, develops, and markets power semiconductors.

Its core business does not involve financial services, lending, or deposit services to consumers. Therefore, all KPIs under the 'Fair Money & Economic Opportunity' value are not applicable. The company does not offer lending or deposit services, consumer credit products, high-cost financial products, dedicated financial inclusion programs, customer financial data management, debt products, financial service access points, or financial products requiring disclosure or explanation. Evidence related to internal diversity or employee compensation does not apply to these KPIs.

Fair Pay & Worker Respect

The company's CEO-to-median employee pay ratio was 142:1 in 2024, with the median employee pay at $20,893.

The overall employee rating from Glassdoor reviews is 2.7 out of 5 stars, and 47% of employees would recommend working at the company. Some employees described salaries as 'LOW' with no future or bonus opportunities, while compensation and benefits received a 2.9 out of 5-star rating. The company offers decent benefits including healthcare.

Fair Trade & Ethical Sourcing

No specific, quantitative data points were found in the provided articles for any of the KPIs under the 'Fair Trade & Ethical Sourcing' value. While the company outlines policies and commitments regarding ethical sourcing, conflict minerals, and prohibitions against forced or child labor, there is no evidence of percentages for fair-trade certified spend, audit frequencies, number of labor incidents, traceability coverage, remediation speed, ethical clause coverage in contracts, share of spend on high-risk materials, or supplier diversity spend.

The articles describe policies and expectations for suppliers but do not provide measurable outcomes or coverage percentages.

Honest & Fair Business

Alpha and Omega Semiconductor Limited (AOSL) has a comprehensive whistleblower protection policy, amended in November 2020 and updated in May 2024.

This policy includes a zero-tolerance stance on retaliation and prohibits discipline for good-faith concerns. It offers a 24/7 anonymous hotline operated by a third-party provider, Lighthouse Services, accessible via multiple languages (English, Simplified Chinese, Traditional Chinese websites, and phone with Chinese translator option), email, and fax. Additionally, anonymous reports can be made directly to the General Counsel, Head of Internal Audit, or the Board’s Audit Committee. The policy applies to all employees, interns, suppliers, agents, and other contractors. AOSL also maintains a comprehensive anti-corruption policy, updated in November 2020, which mandates full compliance with laws like the Foreign Corrupt Practices Act (FCPA) and specifies that non-compliance will lead to termination. The use of Lighthouse Services as a third-party provider for the whistleblower line indicates some independent verification of ethical claims, specifically for the reporting mechanism.

Kind to Animals

Alpha and Omega Semiconductor Limited (AOSL.US) is a semiconductor company. Its core business model, which involves designing, developing, and marketing power semiconductors, does not inherently involve animal-derived products, animal testing, animal husbandry, or direct animal agriculture operations. The provided articles do not contain any specific, concrete evidence related to cruelty-free certifications, alternative testing methods, humane certified operations, wildlife conservation impact, ethical input substitution, animal-related supplier audits, cage-free sourcing, animal testing policy or volume, innovation investment in animal-free technologies, animal agriculture ethics, animal-free R&D collaboration, or public policy engagement on animal welfare.

Therefore, no KPIs can be scored based on the evidence provided.

No War, No Weapons

Alpha and Omega Semiconductor Limited (AOS) shipped 1,650 power controllers, smart power stages, and related accessories to Huawei in 2019 after Huawei was added to a restricted U.S. trade list.

The company paid a $4.25 million fine to the U.S. Department of Commerce to settle allegations related to these export control practices, following a five-year investigation. The company has a conflict minerals policy that prohibits the use of tantalum, tin, tungsten, and gold from the Democratic Republic of Congo (DRC) and its adjoining countries, and suppliers must certify their materials align with SB657 regulations. However, no percentage of the supply chain certified conflict-free is provided. The company states it seeks to conduct business in accordance with international human rights principles, including the UN Guiding Principles on Business and Human Rights. It is committed to ethical sourcing and ensuring suppliers uphold humane employment and sourcing practices, conducting selective supplier audits through a third-party company to verify ESG compliance. The Board periodically reviews compliance with its Labor and Human Rights Policy, and human rights due diligence includes regular training for managers, transparent quarterly meetings for employees, and checks during the hiring process.

Planet-Friendly Business

Alpha and Omega Semiconductor (AOS) has an SBTi-approved near-term science-based emissions reduction target, aligned with the 1.5°C goal of the Paris Agreement.

This target aims for a 50.4% reduction in Scope 1 and market-based Scope 2 greenhouse gas emissions by 2032 from a 2023 base year. By 2024, the company achieved a 7.8% reduction in these emissions from the baseline, exceeding its 2024 reduction target of 5.6%. However, in 2024, AOS used no renewable energy certificates or power purchase agreements. The company converted all its packages to "Green packages" in 2010. In 2026, AOS incurred 15 violations of the Export Administration Regulations (EAR) and faced civil penalties of $4,250,000.

Respect for Cultures & Communities

The Alpha-Omega Charitable Foundation's grant-making includes Arts, Culture & Humanities as a focus area, with total giving of $295,000 in 2024.

However, the percentage of company revenue donated to cultural heritage organizations is not specified. The company provides health and safety information and training in employees' native languages, and its grievance reporting mechanisms are available in English, Simplified Chinese, and Traditional Chinese. The company states it is focused on supporting and working with its communities and partners, and creating a working environment where diversity and respect are valued.

Safe & Smart Tech

AOSL.US has reported no specific data breach incidents or material impact from cyberattacks.

The company states it implements employee training programs, uses encryption protocols, access controls, monitoring tools, and conducts periodic risk assessments. It also states that no specific incidents of unauthorized data use have been reported. AOSL.US complies with the EU-U.S. and Swiss-U.S. Privacy Shield Frameworks, having been certified to the Department of Commerce regarding adherence to these principles since March 25, 2019. However, in July 2025, the company reached a resolution with the U.S. Department of Commerce’s Bureau of Industry and Security (BIS), agreeing to a one-time payment of $4.25 million to resolve allegations of unauthorized shipments to Huawei Technologies in 2019, violating U.S. export regulations. This investigation lasted over five years and resulted in limited administrative export control charges but no criminal charges.

Zero Waste & Sustainable Products

The company demonstrates active management and reduction of hazardous substances. It has converted products to RoHS compliance since 2004, adheres to REACH regulations, and implements a Green Policy for halogen-free/low-halogen products.

Additionally, the company holds QC080000 certification for Hazardous Substance Process Management and requires subcontractors to meet similar standards.