Sales revenues of the enterprises reached 1.54 trillion yuan, up 52.28 percent compared with a year ago, showed the data.

The measures will go into effect on June 1, the ministry said.

The change in the environment has also improved the quality of local people's lives.

Support is being given to peaking pioneers from localities, sectors and companies.

With more than 10,000 registered coal traders, the CTCTC is the largest coal trading center in China.

In 2020, crude steel output rose by 5.2 percent year on year to exceed 1.05 billion tonnes, according to the China Iron and Steel Association.

Export tariffs on ferrosilicon, ferrochrome, high-purity pig iron would be raised to 25 percent, 20 percent and 15 percent, respectively.

A reading above 50 indicates expansion, while a reading below reflects contraction.