In June, the production of raw coal was 330 million tons, a year-on-year decrease of 1.2%.

From January to May 2020, Xinjiang's raw coal output was 105.324 million tons, a year-on-year increase of 15.9%.

In the first five months, coal imports rose by 16.8 percent to hit 149 million tonnes.

Global thermal coal exports in March recorded their steepest annual decline in more than four years, with further supply adjustments likely in the near term as the market rebalances in the wake of lower prices and demand.

Output of raw coal in China fell 0.5 percent year on year to 830 million tonnes in the first quarter of 2020, official data showed.

Mongolia exported some 90,000 tons of coal to China in March, the Mongolian Customs General Administration (MCGA) said.

China's imports of coking coal saw steady growth in November, according to data from General Administration of Customs.

The figure was an increase of 4.2 percent from the same period last year, the MCGA said in a statement.