Since entering January, coke has increased by 500-520 yuan per ton.

The country produced an estimate of 1.03 billion metric tons of steel last year, down 35 million tons from 2020, said the China Iron and Steel Association on Monday.

In addition to coal, gold, platinum and diamond as its most prominent reserves, the country is also home to other minerals, such as chrome, vanadium and titanium.

The main export products included oxyamino compounds, steel, and freight vehicles; and the main imported commodities were copper ore, milk and cream, logs and potash fertilizer.

Guiyang's excellent and good air quality rate in 2021 was 98.9 percent, meeting China's national second-level standard.

Hydrogen is expected to play a much larger role in China's decarbonization, especially in industries like steelmaking and aviation, where there are few clean energy alternatives, analysts said.

Chinese authorities unveiled a plan to facilitate the development of the country's raw materials industry during the 14th Five-Year Plan period (2021-2025).

Chen also outlined a series of goals to achieve in terms of green transformation across raw material industries by the end of 2025.