Group 1 - The core viewpoint of the news is that copper stocks in Hong Kong have collectively rebounded, led by China Daye Nonferrous Metals with a rise of approximately 9% [1] - Glencore is planning to close its Horne smelter and associated copper refinery in Quebec, Canada, due to environmental issues and the need for significant capital investment for upgrades [1] - The Horne smelter has an estimated annual production capacity of over 300,000 tons, accounting for about 17% of copper imports to the United States, indicating a potential disruption in the North American copper supply chain [1] Group 2 - Earlier this year, traders moved large quantities of copper into the U.S. market in anticipation of potential tariffs on copper, leading to a surge in copper prices on the COMEX [1] - In August, former President Trump decided not to impose tariffs on bulk copper but targeted tariffs on processed copper products, while leaving the possibility of tariffs on raw copper starting in 2027 [1] Group 3 - The stock performance of key companies includes: - China Daye Nonferrous Metals: latest price 0.098, up 8.89% - Jiangxi Copper: latest price 30.740, up 2.95% - China Gold International: latest price 125.400, up 1.37% - China Nonferrous Mining: latest price 13.390, up 1.36% [2]