铜冠铜箔：国轩高科为公司重要客户之一，公司向其供应锂电池铜箔

Core Viewpoint - The collaboration between Guoxuan High-Tech and Tongguan Copper Foil is significant, with Guoxuan High-Tech being a major customer for Tongguan Copper Foil, particularly in the lithium battery sector [2] Group 1 - Guoxuan High-Tech is the second-largest shareholder of Tongguan Copper Foil [2] - Tongguan Copper Foil supplies lithium battery copper foil to Guoxuan High-Tech [2] - A stable cooperative relationship has been established between the two companies in the battery field [2]