Tah Kong Chemical Industrial Corporation announced newly elected directors (including independent directors). Title and name of the previous position holder: Director: Representative of Chia Hui Investment Corp., Chia-Hui Teng. (2)Representative of Sumika Color Co.,Ltd., Satoshi Fujioka.

(3)Representative of Sumika Color Co.,Ltd., Jun Sashiki. (4)Liang-Jei Chen. Independent Director: (5)Chen-Wu Yueh.

(6)Hui-Chu Hsu. Resume of the previous position holder: (1)Chairman of Tah Kong Chemical Industrial Corp. (2)Director of Planning & Administration Division of Sumika Color Co.,Ltd. (3)Director of Sales & Marketing Division of Sumika Color Co.,Ltd. (4)General Manager of JC Optical Material Corp.

(5)Senior Business and Marketing Manager (Asia Pacific) Chemicals of Lyondell, Greater China Ltd., Taiwan Branch. (6)Associate Professor, Department of International Business, Shih Chien University. Title and name of the new position holder: Director: (1)Representative of Chia Hui Investment Corp., Chia-Hui Teng.

(2)Liang-Jei Chen. (3)Representative of Sumika Color Co.,Ltd., Satoshi Fujioka. (4)Representative of Sumika Color Co.,Ltd., Jun Sashiki.

Independent Director: (5)Shen-Yan Wang. (6)Chen-Wu Yueh. (7)Hui-Chu Hsu.

Resume of the new position holder: (5)Chairman of Taijing Chemical Industry Co. Ltd. Effective date of the new appointment: June 14, 2023.