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

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

In the January-March period, crude steel output rose 15.6 percent year on year to 271 million tonnes.

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

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.

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

The PMI for China's non-manufacturing sector moderated to 54.9, down 1.4 percentage points from March.

China should guard against the rise in international iron ore prices, as it has the potential to erode its hard-won economic recovery.