中色股份股价跌7.7%，南方基金旗下1只基金位居十大流通股东，持有1275.74万股浮亏损失778.2万元

Group 1 - The core point of the news is that China Nonferrous Metal Construction Co., Ltd. (中色股份) experienced a significant stock decline of 7.7%, with the share price at 7.31 yuan and a trading volume of 1.30 billion yuan, resulting in a total market capitalization of 145.50 billion yuan [1] - The company, established on September 16, 1983, and listed on April 16, 1997, primarily engages in nonferrous metal mining and smelting, as well as international engineering contracting [1] - The revenue composition of the company is as follows: engineering contracting accounts for 58.50%, nonferrous metals for 38.03%, metallurgical machinery for 2.62%, and other sources for 0.84% [1] Group 2 - From the perspective of the top ten circulating shareholders, a fund under Southern Fund is among the largest shareholders of China Nonferrous Metal Construction Co., Ltd. [2] - The Southern CSI 1000 ETF (512100) reduced its holdings by 119,800 shares in the third quarter, now holding 12.7574 million shares, which represents 0.65% of the circulating shares [2] - The estimated floating loss for the fund today is approximately 7.782 million yuan [2]