According to the classification of industries in the National Economic Industry Classification (GB/T4754-2011), according to the degree of risk of work-related injuries in different industries, the risk categories of work-related injuries in industries are divided into one category to eight categories in order from low to high.

The specific industrial injury risk categories are as follows:

Class I: software and information technology services, monetary and financial services, capital market services, insurance, and other financial services;

Class II: wholesale, retail, warehousing, postal services, lodging, and food and beverage;

Class III: agricultural and food processing industries, food manufacturing industries, and the alcoholic, beverage and Refined Tea Manufacturing;

Category IV: Agriculture, Animal Husbandry, Agriculture, Forestry, Animal Husbandry and Fishery Services, Textile, Clothing and Apparel;

Category V: Forestry, Mining Auxiliary Activities, Furniture Manufacturing, Papermaking and Paper Products, Construction and Installation;

Category VI: Fishery, Chemical Raw Materials and Chemical Products Manufacturing, Non-Metallic Mineral Products;

Category VII: Oil and gas extraction, other mining, petroleum processing, coking and nuclear fuel processing industry;

Eight categories: coal mining and washing industry, ferrous metal ore mining, non-ferrous metal ore mining, non-metallic mineral processing industry.