According to the relevant public information, 204 key coal mines and major coal mines in Bijie area were inquired. Among them, Bijie has 4 pairs, Dafang 19 pairs, qianxi county has 23 pairs, Jinsha has 42 pairs, zhijin county has 39 pairs, Nayong has 5 pairs, Weining has 0 pairs, Hezhang has 5 pairs and Guanbaiwei has 20 pairs. Statistics by scale: 90,000 tons/year, 50 equivalents.