CHYY Development Group Limited announced that, Mr. Chen Ning has been appointed as (i) a company secretary of the Company; (ii) an authorized representative of the Company under Rule 5.24 of the Rules Governing the Listing of Securitieson GEM of The Stock Exchange of Hong Kong Limited; and (iii) an authorized representative of the Company for accepting the service of process or notice in Hong Kong under Rule 25.07(2) of the GEM Listing Rules and Part 16 of Companies Ordinance (Chapter 622 of the Laws of Hong Kong), with effect from 24 November 2023. Mr. Chen, aged 43, is a member of Beijing Institute of Certified Public Accountants, a senior accountant approved by the Beijing Senior Specialized Technique Qualification Evaluation Committee, and a certified tax agent of The China Certified Tax Agents Association. He holds a master's degree in management of Beijing Information Science and Technology University.

Mr. Chen has extensive experience in corporate investment and financing, financial management, corporate governance, and company secretarial matters. Mr. Chen has served as the chief financial officer in several subsidiaries of an energy enterprise group and an executive director, chief financial officer and vice president of a company listed on the Main Board of the Stock Exchange.