The board of directors of CStone Pharmaceuticals announced that Ms. Yeung Ching Man has tendered her resignation as the company secretary of the company with effect from 25 January 2021. The Board announced that Mr. He Ning and Mr. Lee Leong Yin have been appointed as the joint company secretaries of the company, and Mr. Lee has been appointed as the Authorized Representatives of the company, with effect from 25 January 2021.