Хятад Колумбын нүүрсний олборлолт 2020 онд өмнөх оны мөн үетэй ...
According to data from the Ministry of National Mines of Colombia, in 2020, Colombia's coal production fell by 40% year-on-year, from 82.4 million tons in 2019 to 49.5 million tons, mainly due to the new crown pneumonia epidemic and the three-month strike. Colombia is the fifth largest coal...
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