The board of directors of CHYY Development Group Limited announces that Ms. Kei Siu Ying ("Ms. Kei") has resigned as the company secretary of the Company (the "Company Secretary") and has ceased to act as an authorised representative of the Company and as an authorised representative of the Company for accepting the service of process or notice in Hong Kong under Part 16 of Companies Ordinance with effect from 17 November 2023.