China Daye Non-Ferrous Metals Mining Limited, a Hong Kong-listed investment holding company and subsidiary of China Times Development Limited, principally engages in the exploration, mining, processing, smelting and sales of non-ferrous metal products including copper cathodes, copper products, gold and gold products, silver and silver products, sulphuric acid, sulphuric concentrate and iron ores; it also provides copper processing services, research and development in mining technologies, trading of metals, minerals, concentrates and building materials. The company operates key mining assets such as the Tonglvshan and Tongshankou mines in Daye City, Fengshan and Chimashan mines in Yangxin County, and the Sareke copper mine in Xinjiang, with activities spanning China, Hong Kong, Kyrgyzstan and the Republic of Mongolia. Founded in 1990 and headquartered in Kowloon, Hong Kong, it targets industrial customers in the basic materials sector amid global demand for copper in electrification and renewable energy applications. In recent developments, the company renewed its continuing connected transactions with parent and associated groups in November 2025 to ensure regulatory compliance under Hong Kong Listing Rules; it considered the disposal of subsidiary Daye Nonferrous Design and Research Institute Co. to optimize state-owned assets; held its annual general meeting in May 2025 approving financial statements for the year ended December 31, 2024 and re-electing key directors including Ms. Zhang Aiju, Mr. Chen Xuewen and Ms. Liu Fang; changed its principal place of business in Hong Kong; and appointed Jinzhong Zhang as CEO in May 2024 while reporting a 10.72% revenue decline to RMB 29.306 billion in H1 2025 with a net loss.