Group 1 - The Shanghai Composite Index decreased by 0.46%, while the CSI Mainland Resource Theme Index fell by 0.42%, closing at 3390.97 points with a trading volume of 33.177 billion [1] - The CSI Mainland Resource Theme Index has increased by 7.17% over the past month, 1.59% over the past three months, and 2.24% year-to-date [1] - The index includes various theme indices such as consumption, resources, transportation, banking, and real estate, reflecting the overall performance of significant listed companies in the Shanghai and Shenzhen markets [1] Group 2 - The top ten holdings of the CSI Mainland Resource Theme Index are: Zijin Mining (16.63%), China Shenhua (7.05%), China Petroleum (5.19%), Sinopec (4.66%), Shaanxi Coal and Chemical Industry (4.28%), China Aluminum (3.3%), Northern Rare Earth (3.2%), CNOOC (3.03%), Luoyang Molybdenum (2.99%), and Shandong Gold (2.71%) [1] - The market share of the CSI Mainland Resource Theme Index is 79.00% from the Shanghai Stock Exchange and 21.00% from the Shenzhen Stock Exchange [1] Group 3 - In terms of industry composition, the index sample shows that materials account for 64.98% and energy accounts for 35.02% [2] - The index sample is adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - Temporary adjustments to the index sample occur when the CSI 800 Index undergoes changes, and companies that are delisted or undergo mergers and acquisitions are handled according to maintenance guidelines [2] Group 4 - Public funds tracking the mainland resources include Minsheng Jianyin CSI Mainland Resource C and Minsheng Jianyin CSI Mainland Resource A [3]