金瑞矿业：大风山锶矿主要资源为天青石矿，已探明保有储量约为1500万吨

Group 1 - The company Jinrui Mining (600714.SH) confirmed that the Dafengshan strontium mine has a proven reserve of approximately 15 million tons of strontium ore [2] - The primary resource of the Dafengshan strontium mine is celestite, which is the raw material for producing strontium carbonate products [2] - Strontium carbonate is the raw material for producing metallic strontium products [2]