Rooftop solar gear, biomass heating, pumped-storage hydroelectricity among tech on rise.

Average monthly output of coal produced by the company has been around 50 million tons during the past 15 months, he added.

Specifically, the industrial output of manufacturing increased by about 3.1 percent last year, according to the ministry.

A trade delegation, composed of over 30 representatives from foreign trade enterprises and government in northeast China's Jilin Province, has recently departed for Russia to expand business opportunities there.

The 2303 ferrosilicon contract price on ZCE closed at 8492 yuan per ton on January 12.

The bureau predicted that whole-year coal output is expected to surpass 1.3 billion tons.

In the first 11 months of last year, the country's iron ore imports dipped 2.1 percent year-on-year to around 1.02 billion metric tons, he said.

China produced some 4.45 billion tons of coal last year, up 8 percent year-on- year.