林州重机矿业有限公司采矿权登记，开采主矿种为铁矿

Group 1 - The mining rights for Linzhou Heavy Machinery Mining Co., Ltd.'s Jinjiacun Iron Mine have been extended, valid from April 22, 2025, to September 22, 2032 [1] - The iron ore mining operation is conducted through underground mining methods [1] - The mining area covers 0.2724 square kilometers with a designed production capacity of 90,000 tons per year [1]