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

But to cut pollution, China has reduced steel production, leading to the closure of many plants.

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

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

China generated 1.25 trillion kilowatt-hours of electricity from renewable energy during the January-June period.

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

The scale of the industrial internet industry has exceeded 1 trillion yuan.

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