长江材料：公司的石英砂矿目前主要是位于辽宁省彰武县的石英砂矿，设计开采利用资源量为14086.6万吨

Group 1 - The company Longjiang Materials (001296.SZ) responded to an investor inquiry regarding the reserves of its quartz sand mines [2] - The main quartz sand mine is located in Zhangwu County, Liaoning Province, with a designed mining resource amount of 14,086.6 million tons [2]