How about China Coal Yihua Mining?

China Coal Energy Yihua Mining has always been very good.

The mine is located in Wushenqi, Erdos City, Inner Mongolia. It always adheres to high standards and strict requirements, has zero tolerance for safety accidents, promotes the establishment and improvement of the standardized management system of coal mine safety production, constantly strengthens the cultivation of workers' awareness of safety production standardization, integrates safety production standardization into workflow and daily behavior norms, and strives to improve the intrinsic safety level of the mine and eliminate safety accidents in the bud.