Chinese Standard Industrial Classification (GB/T 4754-2017)

Category A represents the primary sector of the Chinese economy, covering activities related to crop cultivation, forest management, livestock raising and fishery production. It includes all enterprises, institutions and services engaged in agriculture, forestry, animal husbandry and fishing, from basic production to related processing and support functions.

Code B in the Chinese Standard Industrial Classification (GB/T 4754-2017) designates the mining sector, encompassing the extraction and processing of coal, metal ores, non-metallic minerals and other geological resources. It includes activities such as prospecting, drilling, quarrying, and the operation of mines and associated support services.

In the GB/T 4754-2017 Chinese Standard Industrial Classification, code C designates the manufacturing sector, covering enterprises that transform raw materials into finished products

The D category of GB/T 4754-2017 covers enterprises that generate, transmit, distribute and sell electricity, steam, hot water, natural gas, LPG and water, as well as related auxiliary services such as grid operation, fuel supply and water treatment. It includes both public utilities and private firms engaged in the production, processing, storage and delivery of these energy and water resources.

The code E groups all activities involved in the construction of buildings and civil engineering works, including residential, commercial, and infrastructure projects, as well as related installation, repair, and demolition

The F category in the Chinese Standard Industrial Classification covers activities related to the wholesale and retail distribution of goods. It includes businesses that purchase products for resale to other businesses or directly to consumers, as well as establishments that operate stores, markets, and e-commerce

The G category covers enterprises that provide passenger and cargo transport by road, railway, waterway and air, as well as related logistics services such as warehousing, freight forwarding and handling, and the operation of post offices and other postal delivery activities.

The "H" category of the Chinese Standard Industrial Classification groups establishments that provide lodging and food services, including hotels, guesthouses, hostels, and other accommodation facilities, as well as restaurants, catering firms, street food stalls, and other businesses that prepare and serve meals to the public.

Code I comprises enterprises engaged in the transmission of data and voice communications, the development, production and distribution of software, and the provision of information technology services such as system integration, consulting, data processing and cloud computing. It includes telecom operators, internet service providers, software firms and IT service companies.

Code J in the Chinese Standard Industrial Classification (GB/T 4754-2017) groups enterprises engaged in financial intermediation, including banks, credit unions, financial leasing firms, securities and futures companies, insurance providers, and other institutions that mobilize, allocate, and manage monetary resources on behalf of individuals or organizations. These entities earn income primarily through interest, fees, commissions, premiums, or investment returns derived from their intermediary activities.

Code K in the Chinese Standard Industrial Classification groups all real-estate activities, covering the acquisition, development and sale of land and buildings, as well as the leasing and management of residential, commercial and industrial properties. It also includes related services such as property appraisal, brokerage and the provision of facilities management for owned or rented premises.

The L category includes enterprises that offer leasing of equipment, vehicles and other assets together with a broad range of business support activities such as consulting, management, intermediary and other auxiliary services, encompassing both finance and operating leasing arrangements and related professional services.

The "M" category groups establishments that carry out scientific research, applied development and technical services, including basic and applied R&D, engineering design, testing, inspection, measurement, and consulting activities for industries and the public sector. It encompasses both public and private research institutions and service firms.

Category N covers enterprises that plan, construct, operate and maintain water-conservancy projects, including water supply, sewage treatment, flood control and irrigation. It also includes organizations that provide environmental protection services and manage public facilities such as parks, streets, municipal infrastructure and related community amenities.

The "O Residential and Other Services" category groups enterprises that provide services directly to households, such as accommodation, catering, housekeeping, personal care, security, and other auxiliary residential activities that do not fall under manufacturing or trade. It covers a broad range of non-industrial service activities aimed at meeting everyday living needs.

Code P in the GB/T 4754-2017 Chinese Standard Industrial Classification groups all education activities, ranging from preschool, primary and secondary schools to colleges, universities and vocational training institutions. It also includes adult learning, language schools, distance-learning providers and other entities delivering formal or informal instructional services.

Q covers establishments that provide medical, public-health and preventive services, such as hospitals, clinics, specialized disease-control centers and nursing facilities, as well as organizations delivering social welfare and community assistance, including elderly care, child and youth services, disability support and other social work programs.

Code R covers the cultural, sports and entertainment sector, encompassing the creation, production and distribution of performing arts, film, television, music, museums, galleries, libraries and related cultural venues, as well as the organization and management of sports events, recreational facilities, amusement parks and other leisure activities. This category includes supporting services such as event promotion, ticketing, and sports training.

Code S groups activities of government bodies and agencies that manage public affairs, provide social security services and oversee non-profit social organisations. It includes central and local administrations, courts, public security, social insurance agencies and NGOs that conduct social welfare and community services.

In the Chinese Standard Industrial Classification (GB/T 4754-2017) code T refers to International organisations, encompassing intergovernmental bodies, United Nations agencies and other multinational institutions that operate across borders, providing coordination, policy development and support services.