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Industry code 4229 Construction of other public utility works, updated according to Decision 36/2025/QD-TTg. To learn more about the details of industry code 4229, please refer to this article by VN Law Firm!

1. What is a business industry code?

A 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 industry 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 manufacturing industry as an example:

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

2. Regulations on Industry Code 4229 Construction of other public utility works

Industry Code	Industry Name
4229	Construction of other public utility works

Industry code 4229 Construction of other public utility works

This group includes:

– Construction of sludge treatment plants;

– Construction of other public utility works not elsewhere classified.

Excludes: Project management activities related to civil engineering construction works are classified under group 7110 (Architectural and related technical consulting activities).

Industry code 4229 Construction of other public utility projects

3. Suggested ways to record Industry Code 4229 Construction of other public utility works

– When registering for business establishment, when notifying changes in business lines or when requesting a change to a Business Registration Certificate, the business founder or enterprise selects a four-digit economic industry code from the Vietnam Standard Industrial Classification System to record the business line in the business registration application. The business registration agency guides, verifies, and records the enterprise’s business lines in the National Business Registration Database.

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

Suggested ways to record Industry Code 4229 Construction of other public utility works:

Case 1: General

Industry Code	Industry Name
4229	Construction of other public utility works

Case 2: Detailed

Industry Code	Industry Name
4229	Construction of other public utility works Details: Construction of water supply and drainage systems and irrigation works

Case 3: Detailed

Industry Code	Industry Name
4229	Construction of other public utility works Details: Construction of civil and industrial works

Note: Depending on each specific industry code, business line, and local regulations, it may be necessary to provide detailed information for the 4-digit industry code or commit to operating according to regulations.

4. Services for changing business lines for companies and enterprises at VN Law Firm

The service of changing business lines for companies and enterprises at VN Law Firm helps clients save a significant amount of time and effort. With VN Law Firm, you will be provided with services for changing business lines for companies and enterprises, including:

Consulting on the process and procedures for changing and supplementing business lines;
Advising clients on preparing necessary documents;
Drafting and on behalf of the client submitting documents for changing and supplementing business lines of the company or enterprise at the Business Registration Office;
Tracking the application, supplementing or amending documents (if any) as requested by the specialist;
Performing procedures for publishing business registration information on the Information Portal;
Handing over the certificate of change in business lines;
Guiding clients on procedures to note after changing business lines…