The board of directors of CHYY Development Group Limited announced that Ms. Chan Lok Yin (Ms. Chan) has resigned as the company secretary of the Company (Company Secretary) and has ceased to act as an authorised representative of the Company under Rule 5.24 of the Rules Governing the Listing of Securities on the GEM of The Stock Exchange of Hong Kong Limited (the "Stock Exchange" 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 (Chapter 622 of the Laws of Hong Kong with effect from 2 December 2022. The Board is also pleased to announce that, Ms. Kei Siu Ying has been appointed as the Company Secretary and as the Authorised Representatives of the Company with effect from 2 December 2022. Ms. Kei holds a Master degree in Corporate Governance and a Bachelor degree of Arts (Honours) in Business Enterprise.

She is an associate member of the Hong Kong Chartered Governance Institute. Ms. Kei has over 10 years of working experience in providing administration, accounting and assistant to corporate secretarial work and amongst which, she had been working in a company listed on the Main Board of the Stock Exchange for over 8 years and she has extensive experience in administration, accounting and company secretarial practice.