[Wei Chuan] Announcement regarding the full re-election of the Board of Directors

1. Date of change: June 2, 2026 2. Type of personnel change: Full re-election of the Board of Directors. 3. Previous directors: - Directors: Chen Jian-Zhu, Zeng Zhao-Xun, Xie Ling-Yu, Chen Jun-Zhou, He Rui-Xuan - Independent Directors: Wang Ya-Kang, Qiu Ji-Sheng, Wang Chao-Zhang, Lin Wen-Zhong 4. New directors: - Directors: Chen Jian-Zhu, Zeng Zhao-Xun, Xie Ling-Yu, Chen Jun-Zhou, He Rui-Xuan - Independent Directors: Wang Chao-Zhang, Lin Wen-Zhong, Yeh Yi-Chang, Zheng Xiang-Yu 5. Reason for change: Full re-election due to expiration of tenure. 6. Status of independent director changes: More than one-third of the board members have changed.