Chinese coal mines produced 320.38 million metric tonnes ( mt ) in December , a 2.1 % YoY increase and the highest increase in three years , according to the National Bureau of Mines . The increase followed the approval of CNY45bn ( $ 6.64bn ) of new coal mining projects in 2018 , which led to a 5.2 % increase in annual output to 3.55 billion tonnes , the most since 2015 . However , Shaanxi , which makes up around 20 % of China 's annual coal production , is set to meet the country 's tightest - ever regulations on illegal production after a major accident in January . The new regulation is expected tighten domestic supply .
Chinese coal mines produced 320.38 million metric tonnes (mt) in December, a 2.1% YoY increase and the highest output in three years, according to the National Bureau of Statistics. The increase followed the approval of CNY45bn ($6.64bn) of new coal mining projects in 2018, which led to a 5.2% hike in annual output to 3.55 billion mt, the most since 2015. However, Shaanxi, which makes up around 20% of China's annual coal production, is set to introduce the country's tightest-ever regulations on illegal production after a major accident in January. The new regulation is expected tighten domestic supply.