Group 1 - The core point of the news is that Zhuzhou Smelter Group Co., Ltd. experienced a significant drop in stock price, reaching a limit down at 20.64 yuan per share, with a total market capitalization of 22.144 billion yuan [1] - The company, established on December 20, 1993, and listed on August 30, 2004, primarily engages in the production and sales of zinc and zinc alloys, as well as industrial sulfuric acid [1] - The revenue composition of the company includes: zinc and zinc alloys (38.48%), other products (28.17%), gold ingots (13.94%), silver ingots (10.71%), lead and lead alloys (7.85%), indium ingots (0.51%), sulfuric acid (0.20%), and non-ferrous metal trading (0.14%) [1] Group 2 - From the perspective of fund holdings, Changsheng Fund has one fund heavily invested in Zhuzhou Smelter Group, specifically the Changsheng Strategic Emerging Industries Mixed A Fund (080008), which reduced its holdings by 45,800 shares in the fourth quarter [2] - The current holding of the fund is 131,400 shares, accounting for 1.99% of the fund's net value, making it the fourth largest holding [2] - The fund has reported a floating loss of approximately 300,900 yuan as of the latest data [2] Group 3 - The fund manager of Changsheng Strategic Emerging Industries Mixed A Fund is Yang Heng, who has a tenure of 13 years and 103 days [3] - The total asset size of the fund is 393 million yuan, with the best return during Yang Heng's tenure being 103.97% and the worst being -26.89% [3]