In the 50 years since the establishment of the Bureau, three pairs of production mines/KLOC-0 have been built successively, with a designed production capacity of 3.06 million tons and a maximum annual output of 4.24 million tons, with a cumulative production of 654.38+300 million tons of raw coal. There are 6 production mines with an annual production capacity of 6.5438+0.6 million tons. All are inclined shaft production. * * * The geological reserves are 6 1.77 million tons, and the recoverable reserves are more than 20 million tons. Lan Shu mining area is located in shulan city, starting from Dakouqin Town, Longtan District, Jilin City in the west and ending in Ping 'an Town in the east, with a total length of 57km and a width of 3km, with an area of 17 1 km2. Located in the transition zone from Changbai Mountain to Songliao Plain, the terrain is inclined from southeast to northwest, belonging to temperate continental climate, with an average elevation of 2 10-350 meters. Headquartered in Ji Shu Economic and Technological Development Zone, shulan city, the group company is 57km away from Jilin, the world-famous rime capital, in the south and 0/53km away from Harbin, the internationally famous ice city, in the north. Haji (Longshu) railway and Wuhua first-class highway pass through the mining area, and the traffic is very convenient. Ji Shu is the center of Lan Shu mining area, with more than 5,000 employees and a population of more than 80,000.