Jin Rong Jie·2025-07-31 07:55Group 1 - The Shanghai Composite Index opened lower and the CSI 300 Power Index reported at 2665.82 points, with a decline of 1.66% over the past month, 0.39% over the past three months, and 3.40% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, providing analytical tools for investors [1] - The CSI 300 Power Index's top ten holdings include: Changjiang Electric Power (48.42%), China Nuclear Power (10.51%), Three Gorges Energy (8.64%), Guodian Power (5.78%), State Power Investment (5.27%), Huaneng International (4.62%), Chuanwei Energy (4.29%), China General Nuclear Power (4.1%), Zhejiang Energy (2.91%), and Huadian International (2.77%) [1] Group 2 - The industry composition of the CSI 300 Power Index shows that hydropower accounts for 60.31%, thermal power for 16.08%, nuclear power for 14.61%, and wind power for 9.00% [2] - The index sample is adjusted biannually, with adjustments implemented on the next trading day following the second Friday of June and December each year [2] - In the event of special occurrences affecting a sample company's industry classification, the CSI 300 Industry Index samples will be adjusted accordingly [2]