The board of directors of Greenfiltec Ltd. approved the change of the internal audit officer. Name, title, and resume of the previous position holder: Su-Yun Lu/internal audit officer. Name, title, and resume of the new position holder: Chia-Ju Chung/internal audit administrator.

Effective date: March 10, 2023. The previous internal audit officer, Su-Yun Lu will resign on March 31, 2023.