case
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Henan Xinlei Energy Co., Ltd.
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Inner Mongolia Guangna Group
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China Geological Survey
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Taiyuan coal gasification
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Guizhou Panjiang Power Investment Tianneng Coking Co., Ltd.
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Kunming Iron Steel Anning Company
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Shanxi Regal Coal Washing
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Yizhou Technology Co., Ltd.
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Nanchang Fangda Special Steel
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Jiexiu Kaijia Group Yitang Coal Industry