Group 1 - The company, Yunnan Copper, engages in exploration, mining, smelting, and processing of copper, precious metals, and rare metals, establishing a comprehensive industrial chain in the non-ferrous metal sector [2] - Yunnan Copper is a significant production base for copper, gold, silver, and sulfur chemicals in China, with a strong industry foundation [2] - The company holds controlling interests in several mines, including the Diquan Youse Pulang Copper Mine, Yuxi Mining Dahongshan Copper Mine, and Diquan Mining Yangla Copper Mine [2] Group 2 - As of June 30, 2025, the company has a copper ore resource reserve of 956 million tons, with a metal content of 3.6137 million tons and an average copper grade of 0.38% [2]