Monolithic Power Systems, Inc. (MPWR)

Criticisms on file

No material criticisms on file for this pillar.

Disclosed initiatives

• Energy-Efficient IC Design Philosophy

  MPWR's DC-to-DC and power management ICs are designed to reduce power loss and circuit board space by eliminating discrete components. Products enable significant downstream carbon reductions in customer applications (cloud servers, AI systems, automotive, industrial equipment). Product lifecycles exceed 10 years, reducing manufacturing replacement cycles and associated emissions.

  Indirect Scope 3 mitigation through customer application efficiency; reduced lifecycle manufacturing burden.
• Manufacturing Facility Certifications

  Largest testing facilities in Chengdu, China certified to ISO 14001 (environmental management) and ISO 45001 (occupational health and safety). Facilities maintain chemical hazardous waste management standards and personal protective equipment protocols.

  Verified environmental management systems in place; third-party certification validation.
• Fabless Business Model

  MPWR operates as a fabless semiconductor company, outsourcing all wafer fabrication, assembly, and testing to third parties. This model reduces direct capital intensity and fixed manufacturing footprint.

  Lower direct operational carbon footprint vs. integrated device manufacturers; dependency on supplier emissions management.

Criticisms on file

No material criticisms on file for this pillar.

Disclosed initiatives

• Diversity and Inclusion Programs

  Company reports provision of unconscious bias training to promote inclusivity. Zero-tolerance policy for discrimination with formal reporting mechanisms. Equal-opportunity employer model based on merit and business needs. University recruitment programs and partnerships for diverse talent pipelines.

  Formal D&I training and recruitment infrastructure in place; no quantitative diversity targets or achievement metrics disclosed.
• Occupational Health and Safety

  Occupational health and safety management systems with chemical and hazardous waste standards, personal protective equipment protocols, and safety training plans. Largest facilities (Chengdu) certified ISO 45001. Amenities at major facilities include fitness centers, nursing rooms, and wellness programs (flu clinics, health checkups, exercise classes, yoga).

  Third-party certified safety management; proactive employee wellness offerings.
• Competitive Compensation and Retirement Benefits

  Total compensation packages described as 'competitive, fair, and structured to encourage employees to invest in our future.' 401(k) retirement savings plan for U.S. employees with employer matching contributions.

  Structured retirement and benefits framework; competitive positioning claimed but not benchmarked.
• Employee Learning and Development

  Access to learning tools and resources for skill and business knowledge development. Professional growth opportunities emphasized.

  Documented investment in human capital development.

Criticisms on file

• Material Weakness in Internal Control Over Financial Reporting (Deferred Income Tax Accounting). Company restated audited 2024 consolidated financial statements and unaudited Q1-Q3 2025 condensed consolidated financial statements due to failure to appropriately account for deferred income taxes associated with one-time foreign tax incentive granted by certain foreign jurisdiction.

  Source: MPWR 10-K, Note 2 and Note 17 to Consolidated Financial Statements; Item 1A. Risk Factors; Item 7. MD&A
• Securities Class Action Lawsuit: Waterford Twp. Gen. Emps. Ret. Sys. v. Monolithic Power Systems, Inc., et al., No. 25-cv-220 (W.D. Wash.), filed February 4, 2025. Alleges violations of Securities Exchange Act Sections 10(b) and 20(a) and Rule 10b-5 based on material misstatements or omissions relating to business. Company denies merit and intends vigorous defense.

  Source: MPWR 10-K, Item 3. Legal Proceedings
• Shareholder Derivative Litigation: Miller v. Hsing, et al., No. 25-cv-527 (W.D. Wash.), filed March 26, 2025. Two derivative suits consolidated alleging breaches of fiduciary duty by current and former directors and certain executives. Seeks unspecified damages and attorneys' fees. Derivative litigation stayed pending developments in securities action.

  Source: MPWR 10-K, Item 3. Legal Proceedings

Disclosed initiatives

• Board Independence and Committee Structure

  Six of seven directors (86%) meet NASDAQ independence standards. Board committees: Audit Committee, Compensation Committee (responsible for executive compensation and incentive design), and Nominating & Corporate Governance Committee (oversees director nominations, board evaluations, code of ethics, ESG oversight, and cybersecurity risk management). Annual board and committee self-evaluations conducted.

  Robust independent oversight structure aligned with governance best practices.
• Cybersecurity Governance

  Nominating & Corporate Governance Committee oversees cybersecurity threats and receives quarterly updates from Cybersecurity Steering Committee. Committee updates full Board quarterly. Cybersecurity Steering Committee members have average >20 years' experience in IT governance, cybersecurity, auditing, and compliance. Real-time threat monitoring, penetration testing, data policy audits, employee training, and ISO/IEC 27001 certification implemented. No material information security breaches reported as of filing date.

  Formal cybersecurity governance framework with Board-level oversight and third-party certification.
• Code of Ethics and Compliance

  Code of Ethics and Business Conduct in place. Anti-corruption compliance program addresses FCPA, U.K. Bribery Act, and local anti-corruption laws. Export compliance program maintains controls on export-restricted products. Anti-hedging policy and director voting policy disclosed.

  Documented compliance infrastructure; no violations disclosed.
• ESG Oversight and Reporting

  Environmental, Social, and Governance report published and available on website. Board oversight of ESG initiatives through Nominating & Corporate Governance Committee. Commitment to ESG strategies, practices, policies, and disclosures; acknowledgment of evolving stakeholder expectations and regulatory requirements.

  Formal ESG governance structure and public commitment; proactive stakeholder engagement.