Core Points - The Hang Seng Index Company announced changes to its index constituents due to certain companies being on the Securities and Futures Commission's list of highly concentrated shareholdings, leading to their removal from various indices effective October 27, 2025 [1][2]. Group 1 - Company Shandong Holdings Group Limited (stock code: 00412.HK) will be removed from multiple indices including the Hang Seng Composite Index and the Hang Seng Hong Kong Chinese Enterprises Index [2]. - Company Zhong An Smart Life Services Limited (stock code: 02271.HK) will be removed from the Hang Seng Property Services and Management Index [2]. - Company China Gold International Resources Corp. Ltd. (stock code: 02099.HK) will be added to the Hang Seng Hong Kong Chinese Enterprises Index [3].