Is Heilongjiang Shuanglong Coal Mine a state-owned enterprise?

According to Shunqi.com's inquiry, Heilongjiang Shuanglong Coal Mine belongs to Shuangyashan Mining Co., Ltd. in Long Mei, Heilongjiang Province. Shuangyashan Mining Co., Ltd. in Long Mei, Heilongjiang Province is a large coal enterprise group established on the basis of reorganizing the excellent assets of four key coal mines: Jixi, Hegang, Shuangyashan and Qitaihe. The company, funded by the State-owned Assets Supervision and Administration Commission of Heilongjiang Province, belongs to a provincial state-owned large coal enterprise group. So Heilongjiang Shuanglong Coal Mine is state-owned.