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Industry Code 4312 Site Preparation, updated according to Decision 36/2025/QD-TTg. To learn more about the details of Industry Code 4312, please refer to this article by VN Law Firm!

1. What is a business industry code?

Business industry code is a sequence of numbers encoded to represent a specific business industry. Organizations and individuals, when preparing business registration documents, must use this business industry code table for registration. Level 4 industry code (4 digits) is the code used for business registration.

The Vietnam Standard Industrial Classification (VSIC) system, issued under Decision 36/2025/QD-TTg, has a hierarchical structure consisting of 5 levels, from general to specific:

Level	Name	Code	Quantity
Level 1	First-level economic industry	1 letter (from A to V)	22 industries
Level 2	Second-level economic industry	2 digits (based on Level 1)	87 industries
Level 3	Third-level economic industry	3 digits (based on Level 2)	259 industries
Level 4	Fourth-level economic industry	4 digits (based on Level 3)	495 industries
Level 5	Fifth-level economic industry	5 digits (based on Level 4)	743 industries

Example of industry code structure: Taking the food production industry as an example:

Level 1: C (Manufacturing)
Level 2: 10 (Manufacture of food products)
Level 3: 107 (Manufacture of other food products)
Level 4: 1075 (Manufacture of prepared meals and dishes)
Level 5: 10751 (Manufacture of prepared meat dishes and meals)

2. Regulations on Industry Code 4312 Site Preparation

Industry Code	Industry Name
4312	Site preparation

Industry Code 4312 Site Preparation

This group includes: Activities of site preparation for construction, specifically:

– Clearing of building sites;

– Earth moving: excavation, backfilling, leveling, and grading at construction sites, trench digging, rock removal, blasting, etc.;

– Test drilling, test boring, and core sampling for geological, geophysical or similar purposes;

– Site preparation for mining, such as: over burden removal and other development and preparation of mineral properties and sites, except for oil and gas fields;

– Drainage systems at construction sites;

– Agricultural and forestry drainage systems;

– Mine detection and similar activities (including detonation) at construction sites.

Excludes:

– Drilling of production oil or gas wells is classified in group 06100 (Extraction of crude petroleum), 06200 (Extraction of natural gas);

– Test drilling and boring for mining activities (except crude petroleum and natural gas extraction) are classified in group 09900 (Other mining support service activities);

– Soil decontamination is classified in group 39000 (Pollution treatment and other waste management activities);

– Water well drilling is classified in group 42220 (Construction of water supply and drainage works);

– Shaft sinking for mines is classified in group 43900 (Other specialized construction activities);

– Oil and gas exploration, seismic, geophysical, geological surveys are classified in group 7110 (Architectural and related engineering consulting activities).

3. Suggested ways to record Industry Code 4312 Site Preparation

– When registering a company establishment, notifying changes to business lines, or requesting a change to a new Enterprise Registration Certificate, the enterprise founder or enterprise selects a four-digit economic industry code from the Vietnam Standard Industrial Classification system to specify the business lines in the enterprise registration dossier. The business registration authority guides, cross-references, and records the enterprise’s business lines in the National Enterprise Registration Database.

– For conditional business lines stipulated in other legal normative documents, the business lines shall be recorded according to the provisions in those legal normative documents.

Suggested ways to record Industry Code 4312 Site Preparation:

Case 1: General

Industry Code	Industry Name
4312	Site preparation

Case 2: Detailed

Industry Code	Industry Name
4312	Site preparation Details: Site leveling and grading

Case 3: Detailed

Industry Code	Industry Name
4312	Site preparation Details: Site backfilling and leveling

Note: Depending on the specific industry code and local regulations, it may be necessary to provide detailed descriptions for the level 4 industry code or commit to operating in accordance with regulations.

4. Business Line Change Services for Companies and Enterprises at VN Law Firm

Business line change services for companies and enterprises at VN Law Firm save clients significant time and effort. With VN Law Firm, you will be provided with business line change services for companies and enterprises, including:

Consulting on procedures for changing and supplementing business lines;
Advising clients on preparing necessary documents;
Drafting and submitting dossiers for changing or supplementing business lines of the company/enterprise on behalf of the client at the Business Registration Office;
Monitoring dossiers, supplementing or correcting dossiers (if any) as required by specialists;
Carrying out procedures for announcing enterprise registration information on the Information Portal;
Handing over the certificate of business line change;
Guiding clients on procedures to note after changing business lines…