According to data of Mineral Resources Authority, Umnugobi aimag has the most number of coal exploitation licenses in 143.5 thousand hectares exploitation. Dundgobi aimag has licenses in 37.8 thousand hectares, Baganuur district in 4.8 thousand hectares, Gobisumber in 4.4 thousand hectares and Tuv aimag in 3.4 thousand hectares, shows data.