和邦生物(603077.SH)：暂无产品直接用于固态电池上

Group 1 - The company does not currently have products directly used in solid-state batteries, but its sodium carbonate and phosphate products are basic raw materials for some solid-state battery cathodes [1] - The company holds a 50% stake in Nigeria's BCT Company through its wholly-owned subsidiary, Hebang Bio (Hong Kong) Investment Co., Ltd [1] - BCT Company is primarily engaged in the mining, washing, and sales of lithium and tin ores, currently holding exploration rights for 15 lithium mines and 6 tin mines [1] Group 2 - BCT Company controls 60% of "Deep Earth Mineral Resources Limited," which has exploration rights for 5 lithium mines, and "BC Mining Company Limited," which has exploration rights for 2 lithium mines [1]