云南铜业：拟3亿元设立控股子公司 优化铜冶炼产业布局

Group 1 - The core viewpoint of the article is that Yunnan Copper Industry (000878) is forming a joint venture with Liangshan Industrial Investment Development Group to optimize its copper smelting industry layout in Liangshan Prefecture, Sichuan Province [1] - The registered capital of the joint venture company is 500 million yuan, with Yunnan Copper contributing 300 million yuan for a 60% stake, while Liangshan Industrial Investment contributes 200 million yuan for a 40% stake [1] - This investment will further promote the establishment of a complete copper mining, selection, and smelting industrial chain locally, expanding sales markets in regions such as Chengdu-Chongqing, and enhancing the overall competitiveness of the company [1]