Jin Rong Jie·2025-06-05 11:40Group 1 - The Shanghai Composite Index opened high and fluctuated, with the CSI 300 Metals and Mining Index reported at 2405.31 points [1] - The CSI 300 Metals and Mining Index has increased by 2.29% in the past month, 3.98% in the past three months, and 9.43% year-to-date [1] - The CSI 300 Index is categorized into 10 primary industries, 26 secondary industries, over 70 tertiary industries, and more than 100 quaternary industries [1] Group 2 - The top ten holdings in the CSI 300 Metals and Mining Index are Zijin Mining (31.27%), Northern Rare Earth (6.45%), Baosteel (6.2%), Shandong Gold (5.8%), China Aluminum (5.62%), Luoyang Molybdenum (5.48%), Huayou Cobalt (4.91%), Zhongjin Gold (4.35%), Baogang Group (4.22%), and Ganfeng Lithium (3.75%) [1] - The market share of the CSI 300 Metals and Mining Index is 82.35% from the Shanghai Stock Exchange and 17.65% from the Shenzhen Stock Exchange [2] - The industry composition of the CSI 300 Metals and Mining Index includes precious metals (44.94%), industrial metals (21.54%), rare metals (19.00%), steel (11.62%), and other non-metal materials (2.90%) [2] Group 3 - The index samples are adjusted every six months, specifically on the second Friday of June and December, with temporary adjustments made under special circumstances [2] - When a sample is delisted, it is removed from the index, and any corporate actions such as acquisitions, mergers, or splits are handled according to maintenance guidelines [2] - Adjustments to the CSI 300 industry index samples occur in conjunction with changes to the CSI 300 Index samples [2]