RSUN SER (01971): Liu Chang Appointed as Joint Company Secretary, Authorized Representative and Process Agent

RSUN SER (01971) announced that Ms. Chen Zhuoman (Ms. Chen) has resigned as the joint company secretary of the Company (Joint Company Secretary) and will cease to act as the authorized representative of the Company under Rule 3.05 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the Stock Exchange) (the Listing Rules) (Authorized Representative) and the process agent for accepting service of legal process documents and notices on behalf of the Company in Hong Kong under Rule 19.05(2) of the Listing Rules and Part 16 of the Companies Ordinance (Chapter 622 of the Laws of Hong Kong) (Process Agent), with effect from October 19, 2026. The Board further announced that Ms. Liu Chang (Ms. Liu) has been appointed as the Joint Company Secretary, Authorized Representative and Process Agent, with effect from October 19, 2026. Following the above changes, Mr. Jia Hongbo (Mr. Jia) will continue to serve as the other Joint Company Secretary.