金瑞矿业：公司拥有的大风山锶矿资源已探明保有储量约为1500万吨

Group 1 - The core point of the article is that Jinrui Mining (600714) has confirmed its ownership of a significant strontium mine resource, with proven reserves of approximately 15 million tons, categorizing it as a medium to large strontium mine in China [1] Group 2 - The company has engaged with investors through an interactive platform, indicating transparency and communication regarding its resource holdings [1] - The proven reserves of the Dafengshan strontium mine position the company favorably within the domestic mining industry [1] - The resource size of 15 million tons highlights the potential for future production and revenue generation for the company [1]