Is Huineng Group a state-owned enterprise or a private enterprise?

Private enterprises.

According to (Tianyancha) query, Inner Mongolia Huineng Group Erlingtu Coal Industry Co., Ltd. is a private enterprise, not a state-owned enterprise. Inner Mongolia Huineng Group Erlingtu Coal Industry Co., Ltd. (formerly known as Argonggou Coal Industry Co., Ltd. in Erdos City, Inner Mongolia), established in 2004, is an enterprise mainly engaged in coal mining and washing. The registered capital of the enterprise is 765 million yuan, and the paid-in capital is 765 million yuan.