The business scope of Shanxi Pingyao Yan Feng Coal Coke Group Co., Ltd. is: bauxite; Production and sales of rock wool, ferronickel, ferrochrome, pig iron, density board, cement, calcium silicate board, thermal insulation and decoration integrated board, wood plastic, aluminum profile, fly ash brick, refractory brick, starch, refractory material, carbon and cast products; Foreign trade; Coal mining and distribution; Coke (projects that need to be approved according to law can only be operated after being approved by relevant departments).

In Shanxi Province, the total registered capital of companies with similar business scope is 40,453.22 million yuan, and the main capital is concentrated in 236 enterprises with a scale of more than 50 million.

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Technical prospect of coal mining:

Coal mining technology, whether open-pit or underground, is developing towards remote control and automation of production process on the basis of high mechanization. By improving the design, selection, materials, manufacturing technology, inspection methods and maintenance system of fully mechanized mining equipment, its production capacity and equipment utilization rate are improved.

At the same time, mine hoisting, transportation, drainage, ventilation, gas monitoring and other links will realize automation and remote control. Both underground and open-pit coal mines will realize centralized computer automatic management and monitoring.

Some countries have used robots in underground mining job interviews. If the technical links such as resource recovery, slime treatment, auxiliary transportation and ventilation system can be further improved and perfected, hydraulic coal mining method will be a promising coal mining technology.