Group 1 - The top five gaining Chinese concept stocks at the close were Pitanium, Skyline Construction Group, Jin Xin Technology, Golden Sun Amusement, and Luda Technology, with significant percentage increases ranging from 24.90% to 62.46% [1] - Pitanium (PTNM) saw a remarkable increase of 62.46%, closing at 1.6100 with a trading volume of 80.7471 million [1] - Skyline Construction Group (SKBL) experienced a 52.19% rise, closing at 0.8188 with a trading volume of 87.6669 million [1] Group 2 - Jin Xin Technology (NAMI) increased by 33.01%, closing at 1.370 with a trading volume of 77.2216 million [1] - Golden Sun Amusement (GDHG) rose by 25.49%, closing at 0.4800 with a trading volume of 0.8712 million [1] - Luda Technology (LUD) had a 24.90% increase, closing at 6.470 with a trading volume of 0.1167 million [1]