High-risk industries (coal mines, non-coal mines, hazardous chemicals, fireworks and firecrackers, and metal smelting industries): the initial safety training time for the main person in charge and safety production management personnel shall be no less than 48 hours, and the annual retraining time shall be no less than 16 hours. The safety training time for new employees shall not be less than 72 hours, and the annual retraining time shall not be less than 20 hours.

Safety production management personnel is a profession announced by Ministry of Human Resources and Social Security.