Corporate Governance

The UMC Board of Directors comprises of 9 members, including 6 seats for independent directors and 3 serve as administrative directors. Two third of the director seats are filled by independent directors. There are 3 seats currently reserved for female directors. Based on our policy of gender equality, UMC will increase the female director seats progressively.

The tenures of independent directors are also diversified; there are 2 directors that has served for 8 years, 2 directors for 5 years and 2 directors newly elected on May 30, 2024.

The board of UMC is composed of members with diversified backgrounds of industry, government and academy. The experiences of board members include the president of national university, academician of Academia Sinica, the Minister of Science and Technology, the president of ITRI, the financial experts in finance, accounting and strategy management fields, the professionals from the semiconductor industry and the management team of ICT industries and financial institutions. The directors meet basic criteria and professionalism requirements, and through activities of the sub-committees, can also contribute their experiences to supervise and govern issues related to corporate governance, environmental sustainability, corporate social responsibility, legal compliance and human rights protection.

All independent directors meet the restriction of the Regulations Governing Appointment of Independent Directors and Compliance Matters for Public Companies for other mandates, each independent director concurrently does not serve as an independent director for more than 3 listed companies. Please refer to “Directors’ Professional Knowledge and Independence Information”. 

Directors’ Professional Knowledge and Independence Information 

The Company conducts annual self-evaluation of the performance of the Board of Directors, Audit Committee, Remuneration Committee, other functional committees and individual board members based on the “Rules for Performance Evaluation of the Board of Directors" approved by the Board of Directors. The performance results are graded as "Excellent", "Good", or "Room for Improvement". The Sustainable Development and Nominating Committee conducted the self-evaluation for 2025 of the Board of Directors, Audit Committee, Remuneration Committee, Capital Budget Committee, Sustainable Development and Nominating Committee and individual board members and reported the result to the Sustainable Development and Nominating Committee and Board of Directors on February 25, 2026. All performance results based on the listed evaluation content were graded as "Excellent". Regarding director training, the Company will continuously arrange diverse training courses for directors based on the results of board performance evaluations. These programs aim to enhance directors' professional knowledge and skills, thereby supporting the effective operation of the Board.

1. Performance evaluation of the Board of Directors
   Evaluation content：
   (1)Participation in the operation of the company;

   (2)Improvement of the quality of the board of directors' decision making;
   (3)Composition and structure of the board of directors;
   (4)Election and continuing education of the directors;
   (5)Internal control; and

   (6)Level of engagement in sustainable operation (ESG).
   Evaluation period：2025/1/1~2025/12/31.
   Performance result：Excellent.

2. Performance evaluation of the functional committees (includes Audit Committee, Remuneration Committee and Capital Budget Committee)
   Evaluation content：
   (1)Participation in the operation of the company;
   (2)Awareness of the duties of the functional committee;
   (3)Improvement of quality of decisions made by the functional committee;
   (4)Composition of the functional committee and election of its members; and
   (5)Internal control.
   Evaluation period：2025/1/1~2025/12/31.
   Performance result of Audit Committee：Excellent.
   Performance result of Remuneration Committee：Excellent.
   Performance result of Capital Budget Committee：Excellent.
3. Performance evaluation of the functional committees (Sustainable Development and Nominating Committee)
   Evaluation content：
   (1)Participation in the operation of the company;

   (2)Awareness of the duties of the functional committee;
   (3)Improvement of quality of decisions made by the functional committee;
   (4)Composition of the functional committee and election of its members;
   (5)Internal control; and

   (6)Level of engagement in sustainable operation (ESG).
   Evaluation period：2025/1/1~2025/12/31.
   Performance result of Sustainable Development and Nominating Committee：Excellent.

4. Performance evaluation of individual board members

Evaluation content：
(1)Familiarity with the goals and missions of the company;
(2)Awareness of the duties of a director;
(3)Participation in the operation of the company;
(4)Management of internal relationship and communication;
(5)The director's professionalism and continuing education; and
(6)Internal control.
Evaluation period：2025/1/1~2025/12/31.
Performance result：Excellent.

To improve the operating efficiency of the Board of Directors and enhance corporate governance, “The Rules for Performance Evaluation of the Board of Directors" was revised by UMC and approved by the Board of Directors in October of 2017, which requires the Company's board performance evaluation to be conducted by an external independent professional institution or a panel of external experts and scholars at least once every three years.
 

The Company engaged with an external independent institution, Taiwan Corporate Governance Association, a professional institution is independent and has no business relation with the Company, to conduct an assessment on board performance, and completed the evaluation on October 25, 2023. The assessment comprised of 8 scopes including Composition, Direction, Authorization, Monitoring, Communication, Internal control, Risk management and Discipline of the Board, and the external institution executed the review through online self-assessment and interview. The assessment report was released on December 8, 2023 and reported to the Nominating Committee and the Board on December 13, 2023.

  The report concluded that UMC paid significant attention to the professionalism and diversity of the composition of the Board, and rigorously selected qualified candidates based on the Company's development needs and strategic goals. The seats of independent directors and female directors has exceeded the regulatory requirements, the Company has made leading arrangements with international perspective and which is praiseworthy. Board members actively speak on various issues and directly communicate with the management, the Board share a good culture with aggressive and effective benefits. The Board focused the importance in sustainable development and risk management issues, which not only integrated sustainable goals with business operations, but also linked employee compensations with the achievement of ESG KPIs, which will strive to enhance the effectiveness of sustainable management. The Company emphasized on the development and cultivation of high-level management, and the succession plan in management team to reserve talents for the company's sustainable development. The report addressed a recommendation on renaming the Nomination Committee to the Sustainability and Nominating Committee, and improving the relevant rules and regulations of the ESG organization, in order to enhance the effectiveness and efficiency of the Board. The Company amended the Articles of Incorporation to rename the Nomination Committee to the Sustainable Development and Nominating Committee in annual general meeting on May 30^th, 2024, and gradually implement the improvement plan in accordance with the recommendations of the report.