Group 1 - The Hang Seng Index Company and Hong Kong Exchanges and Clearing Limited announced the quarterly index review results for the Hang Seng Stock Connect China Enterprises Index as of September 30, 2025 [1] - The number of constituent stocks remains at 80, with four new additions: China Hongqiao Group (01378), Innovent Biologics (01801), Yum China (09987), and North Huachuang (002371) [1] - Four stocks were removed from the index: New Energy (02688), Huaneng Lancang River Hydropower (600025), and Inner Mongolia Yili Industrial Group (600887) [1] Group 2 - The changes will take effect on December 8, 2025 [1]