中钢天源：公司拥有35000吨电池级四氧化三锰产能

Group 1 - The company, Zhonggang Tianyuan, has a production capacity of 35,000 tons of battery-grade manganese tetroxide, which is a crucial upstream material in the manganese-based cathode industry chain [1] - The products can be utilized in lithium manganese oxide and lithium iron phosphate materials for batteries [1]