By the end of June, China's installed capacity for renewable energy had exceeded 1.1 billion kilowatts.

As a large coal supply base, Xinjiang aims to achieve coal output of more than 400 million tons by 2025.

Major steel producers churned out a total of 20.79 million tonnes of crude steel in late July, the data showed.

According to the administration, China saw 190 mining accidents in the January-July period, down 14 percent year on year.

China's State Administration for Market Regulation has conducted investigations on activities of bidding up coal prices, the administration said Friday.

Hasan said that the exported steel would be used to establish a hospital in New Zealand.

Rio Tinto is not concerned about China's plans to centralise iron-ore purchases and has strong ties with its customers, the Australia CEO for the global miner said on Friday.

"The situation on the gas market is tense," Minister for Economic Affairs and Climate Action Robert Habeck said in a statement.