Compared with wet quenching, Mi said the new technique has economic and environmental benefits.

Steel, magnesium and its products, and coal are among the major exported commodities.

In terms of improvement in rankings, China's Ansteel Group Corp made the highest jump across 183 places to 217.

China reduced as much air pollution in seven years as the United States did in three decades.

They also said the industry will likely experience demand recovery to a certain extent in the coming months.

Hydrogen can only be generated by consuming primary energy such as coal, natural gas and renewable energy.

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

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