One of the main businesses of CHMC incorporates providing the design, supply, installation and system commissioning of complete sets of technical equipment for open-pit stripping or underground mining in coal, metal and non-metal mines. CMHC has contracted more than 400 individual projects in 94 mining areas at home and abroad, provided complete sets of equipment such as 15 million tons of open pit coal mines, 17 million tons of open pit iron mines, 9 million tons of concentrators, between 0.9 million and 5 million tons of coal washeries, open pit copper mine concentrators with daily capacity totaling 60,000 tons, as well as engineering equipment for 1.5-5 million tons of large-scale shafts, inclined shafts and tunnel excavation.