CHINA SUPPLY CHAIN HOLDINGS LIMITED 中 國 供 應 鏈 產 業 集 團 有 限 公 司 (Incorporated in the Cayman Islands with limited liability) （於開曼群島註冊成立之有限公司） (Stock Code 股份代號：3708) NOTIFICATION LETTER 通 知 信 函 Dear Non-registered Shareholder (Note 1) , 27 October 2025 The following document(s) of China Supply Chain Holdings Limited ("Company") has/have been prepared in English and Chinese and is/are available on the websites of the Company at chsc.com.hk and The Stock Exchange of Hong Kong Limited at www.hkexnews.hk (collectiv ...