The figure dropped by 1.4 percentage points from the previous quarter, according to the National Bureau of Statistics.

Renewable energy use, low season, curbs on inflows, green drive factors.

Thanks to the digitalization of the coal industry, miners no longer need to enter the deep mineshafts via walking or riding on a small, outdated train.

China's raw coal output posted stable expansion in March, official data showed.

Shanxi's raw coal output accounted for about 29 percent of the country's total in the first quarter.

Philippine nickel ore producer Global Ferronickel's (FNI) subsidiary Platinum Group Metals (PGMC) has shipped to China its first batch of nickel ore for this year's mining season.

China's steel sector saw output expansion in the first quarter of the year, industrial data showed.

The institute has developed the 0.08mm ultra-thin grain-oriented silicon steel strip and iron core in collaboration with several other companies and institutes including China Iron & Steel Research Institute Group.