Special scope of work:

1. Electrical work. Including installation, operation, maintenance (overhaul) and test workers and mine electrical fitters of power generation, transmission, substation, electrician and electrical equipment;

2. Metal welding and cutting operations. Including welders and cutters;

3. Lifting machinery operation. Including crane driver, foreman, signal commander, installation and maintenance worker;

4. Driving a motor vehicle in an enterprise. Including drivers of all kinds of motor vehicles driving in production areas and construction sites such as enterprises, docks and freight yards;

5. Climbing and installation work. Including the erection, demolition, maintenance and surface cleaning of high-rise buildings (structures) over 2 meters;

6. Boiler operation (including water quality test). Including pressure boiler operators and boiler water quality testers;

7. Pressure vessel operation. Including pressure vessel canning workers, inspectors, transport escorts and large air compressor operators;

8. Refrigeration operation. Including refrigeration equipment installers, operators and maintenance workers;

9. Blasting operation. Including ground engineering blasting and underground blasting workers;

10. Mine ventilation operation. Including main fan operators, gas extraction workers, ventilation safety monitoring workers, wind and dust measurement workers;

1 1. Mine drainage operation. Including mine main drainage pump workers and tailings dam workers;

12. Mine safety inspection. Including safety inspectors, gas inspectors and explosion-proof inspectors of electrical equipment;

13. Mine hoisting transportation operation. Including the main hoist, winch (uphill and downhill), fixed belt mechanic, signalman and can (hook) worker;

14. Mining (stripping) operation. Comprise a shearer drive, a tunneling machine driver, a rock rake driver and a rock drill driver;

15. Mine rescue operation;

16. Operation of dangerous goods. Operators, transport escorts and storekeepers of dangerous chemicals, civil explosives and radioactive substances;

17. Other businesses approved by the State Council.