1, national economic industry classification and code (GB/4754-20 1 1), national economic industry classification. ?

2.a Agriculture, forestry, animal husbandry and fisheries. B. mining industry; C manufacturing industry.

3. Electricity, heat, gas and water production and supply industries.

4. Construction industry; Wholesale and retail trade; G transportation, warehousing and postal services.

5, H accommodation and catering industry; Information transmission, software and information technology services.

6.j financial industry; K real estate industry; Leasing and business services.

7, m scientific research and technical services; Management of water conservancy, environment and public facilities.

8.o Resident services, maintenance and other services; P education; Health and social work.

9.r culture, sports and entertainment; Public management, social security and social organization; T international organization.

Brief introduction of industry code:

Industry code is the specific code of industry classification. According to a certain scientific basis, the organizational structure system of units or individuals engaged in national economic production and management is divided in detail, such as forestry, automobile industry, banking and so on.

Determine the nature of the industry according to the main economic activities of the unit. When the unit is engaged in an economic activity, the industry to which the unit belongs shall be determined according to the economic activity; When the unit is engaged in more than two kinds of economic activities at the same time, the industry to which the unit belongs shall be determined according to the main activities.