China's coal output in May hit 297 million tonnes, up 3.5% year over year, as producers picked up the pace to answer rising demand just ahead of summer, Reuters reported, citing June 14 data from the National Bureau of Statistics.
The level of production reported is the highest since December 2017, the report said.
Warm weather and increased demand from industrial sectors drove a 10% rise in coal-fired power consumption for the month, the report said, citing data from the bureau.
In the first five months of 2018, coal output reached 1.4 billion tonnes, up 4% from the year-ago period.
The country's tightening controls on imports of foreign coal, however, have kept its growth rate to less than 1% year over year to 22.3 million tonnes.