Erdos, March 22 - The construction of Changcheng Mine No.5 and 6 of Inner Mongolia Energy, Shandong Energy Xinwen Mining Group, was officially approved by the state energy administration.The project is located in the Ertoke Qianqi, Erdos, Inner Mongolia autonomous region. The total investment of the project is 5.015 billion yuan (excluding the cost of mining rights). Among them, the approved mine construction scale of No.5 is 1.8 million tons/year, and no.6 1.5 million tons/year. After the project was approved and put into operation, Inner Mongolia's energy production will be increased by 3.3 million tons per year.