[Tengyuan Cobalt plans to cooperate with Hunan Sulfur Lithium to build a lithium sulfide pilot line] On September 16, reporters learned from Tengyuan Cobalt that the company recently reached a strategic cooperation with Hunan Sulfur Lithium Exploration Technology Co., Ltd. The two parties will jointly build a lithium sulfide pilot line and carry out engineering verification of key raw materials upstream of solid-state battery sulfide electrolytes. According to the cooperation arrangement, Tengyuan Cobalt combines hydrometallurgy, high-purity material purification and other capabilities to promote the implementation of pilot projects; Hunan Sulfur Lithium provides lithium sulfide material formula and solid electrolyte research and development technology. (Reporter Liang Xiangcai)