The Xingtai mining area is a typical North China Permo-Carboniferous karstic type coalfield, its lower coal group is generally under threat from the thick Ordovician limestone strong karstic aquifer.

邢台矿区属典型的华北岩溶型石炭—二叠系煤田，下组煤普遍受巨厚奥陶系灰岩强岩溶含水层的威胁。

youdao

Moreover, the group also generates income from coal mining located at Kengkhang between Mongla and Nampan, and transported to China every day. It is a joint venture with a Chinese company.

此外，勐腊军与一家中国公司合资开采位于南攀、勐腊之间的景康煤矿，每日运往中国销售获得收入。

youdao