Legal basis: Article 34 of the Social Insurance Law of People's Republic of China (PRC), the state determines the differential rates of different industries according to the degree of industrial injury risks, and determines the rate grades of different industries according to the use of industrial injury insurance funds and the incidence of industrial injuries. Industry differential rates and intra-industry rates shall be formulated by the administrative department of social insurance of the State Council, and promulgated and implemented after being approved by the State Council. Social insurance agencies shall determine the employer's payment rate according to the employer's use of work-related injury insurance funds, the incidence of work-related injuries and the level of industry rates.