Core Viewpoint - The China Securities Hong Kong 300 Materials Index has shown significant growth, with a 41.40% increase year-to-date, indicating strong performance in the materials sector [1][2]. Group 1: Index Performance - The China Securities Hong Kong 300 Materials Index reported a value of 2311.34 points, with a 6.83% increase over the past month and a 23.83% increase over the past three months [1]. - The index is designed to reflect the overall performance of different industries in the Hong Kong market, classified according to the China Securities industry classification standards [1]. Group 2: Index Composition - The top ten holdings in the China Securities Hong Kong 300 Materials Index include Zijin Mining (26.28%), China Hongqiao (10.9%), and Zhaojin Mining (7.98%) among others [1]. - The index is fully composed of stocks listed on the Hong Kong Stock Exchange, with a 100% representation [1]. Group 3: Industry Breakdown - The industry composition of the index shows that non-ferrous metals account for 78.94%, non-metallic materials for 15.04%, chemicals for 4.62%, and paper and packaging for 1.41% [2]. - The index samples are adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December [2].