The new group was formed by Jixi, Hegang, Shuangyashan and Qitaihe coal companies. China Daily reported the group plans to list on the Hong Kong stock exchange this year.
The formation of the new group was backed by Japanese investor Itochu Corporation.
The north-east province of Heilongjiang proven coal reserves of 22.4 billion tons and currently has an annual output of about 80 million tons.