Group 1 - China Railway Industry has experienced a decline for seven consecutive trading days, with a cumulative drop of -18.35% [1] - China Railway High-tech Industry Co., Ltd. is a subsidiary of China Railway Group Limited, listed on the A-share market (SH.600528), and operates various subsidiaries covering tunnel excavation equipment, railway turnouts, steel bridges, railway construction machinery, and more [1] - The company holds a leading market share and comprehensive strength in its main business globally [1] Group 2 - Southern Fund's Southern CSI 500 ETF is among the top ten shareholders of China Railway Industry and has reduced its holdings in the first quarter of this year [1] - The fund has achieved a year-to-date return of 10.67%, ranking 961 out of 2658 in its category [2][4]