Evaluation of the Performance of the Board of Directors and Sub-Committees

The Company has policy to arrange the evaluation for the Board of Directors at least once a year to help the Committee review their performance, working issues, and obstacles during the past year, thus increasing the work effectiveness of the Committee in accordance with the principles of good corporate governance. The Company applies the SET’s self-evaluation assessment approach and adds further criteria for performance evaluation to comply with the CG Code guidelines set by SEC. The criteria that have been added in assessing the Committee’s performance i.e.

• The Board has emphasized the importance of and provided sufficient time on considering material matters relating to the Company’s sustainable development strategy.
• The Board has emphasized the importance of and provided sufficient time on considering or reviewing the policy on key risks arising in the Company’s operation including Environmental, Social and Governance Risks (ESG Risk).
• All directors have attended training courses or seminars that enhances their knowledge in the past year, such as business-related courses, business sustainability courses, insider information prevention courses, and conflict of interest prevention courses, etc.

The Company Secretary will submit the annual self-evaluation form to all directors to performance, both individually and in group. Once each director has completed the assessment, the form will be sent back to the Company Secretary to calculate scores of each director, analyze, and summarize the results of the Board of Directors’ performance for the year, and report to the Board of Directors for consideration, achieving the objective stated above. The performance assessment in 2022 at the Board of Directors’ Meeting No. 5/2022 on December 22, 2022 can be summarized in percentage as follows :

There are two types of the performance self-assessment forms for the Board of Directors : Individual and Whole committee. The results are summarized as below :

The criteria for assessment of sub-committees is similar to that of the Board of Directors. The evaluation results of the whole committee are summarized below :