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，目前在国内属大中型锶矿

Group 1 - The core point of the article is that Jinrui Mining has confirmed a resource reserve of approximately 15 million tons at its Dafengshan strontium mine, which accounts for over 60% of China's total strontium ore reserves [2] - Jinrui Mining's Dafengshan strontium mine is classified as a medium to large-sized strontium mine within China [2] - The company responded to an investor inquiry on an interactive platform regarding the authenticity of the stated reserves [2]