China's coal hub Shanxi vows thorough probe after mining off

China’s coal producers are under constant scrutiny over accidents, often caused by lax safety standards and poor enforcement.

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United States , Lishi , Jiangxi , China , Jingcheng , Anhui , Luliang , Jiangsu , Shanxi , Fujian , Wang Xiangxi , Jingcheng Coal Mining Company , Xinhua , National Health Commission , State Council , Yongju Coal Industry ,