Zheng Xing Xing Ye Ri Bao·2025-09-15 08:49Group 1 - The coal mining sector increased by 1.29% on September 15, with Electric Power Investment leading the gains [1] - The Shanghai Composite Index closed at 3860.5, down 0.26%, while the Shenzhen Component Index closed at 13005.77, up 0.63% [1] - Key stocks in the coal mining sector showed significant price increases, with Electric Power Investment rising by 4.04% to a closing price of 23.16 [1] Group 2 - The coal mining sector experienced a net inflow of 323 million yuan from main funds, while retail investors saw a net outflow of 250 million yuan [2] - Major stocks like Shanxi Coking Coal and Shaanxi Coal and Chemical Industries had notable net inflows from main funds, indicating strong institutional interest [3] - The overall trading volume in the coal mining sector was substantial, with Shanxi Coking Coal achieving a transaction amount of 1.054 billion yuan [1][2]