Industry Code 2731 for Manufacturing of optical fiber cables is the latest according to Decision 36/2025/QĐ-TTg. To learn more about the details of industry code 2731, please refer to this article by VN Law Firm!
1. What is a Business Industry Code?
A business industry code is a series of numbers encoded to represent a specific business industry. Organizations and individuals must use this business industry code table when preparing business registration documents. The 4-digit industry code (level 4) is the code used for business registration.
The Vietnam Standard Industrial Classification (VSIC) system, issued under Decision 36/2025/QĐ-TTg, has a hierarchical structure with 5 levels, from general to detailed:
| Level | Name | Code | Quantity |
|---|---|---|---|
| Level 1 | Economic sector (Level 1) | 1 letter (from A to V) | 22 sectors |
| Level 2 | Economic sector (Level 2) | 2 digits (based on Level 1) | 87 sectors |
| Level 3 | Economic sector (Level 3) | 3 digits (based on Level 2) | 259 sectors |
| Level 4 | Economic sector (Level 4) | 4 digits (based on Level 3) | 495 sectors |
| Level 5 | Economic sector (Level 5) | 5 digits (based on Level 4) | 743 sectors |
Example of industry code structure: Taking the example of Food processing:
- 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 meals and dishes from meat)
2. Regulations on Industry Code 2731 Manufacturing of optical fiber cables
| Industry Code | Industry Name |
|---|---|
| 2731 | Manufacturing of optical fiber cables |
This group includes: Manufacturing of optical fiber cables for data or video transmission.
Excludes:
– Manufacturing of glass fibers is classified under group 23103 (Manufacture of glass fiber and products thereof);
– Manufacturing of optical fiber connectors, optical fiber bundles, and optical cables is classified under group 27330 (Manufacturing of other wiring devices);
– Installation of optical fiber cables and other types of cables is classified under group 43210 (Installation of electrical systems).

3. Suggestions for recording Industry Code 2731 Manufacturing of optical fiber cables
– When registering to establish a business, when notifying changes to business lines, or when requesting a change to a Business Registration Certificate, the business founder or enterprise selects a level-four economic industry in the Vietnam Standard Industrial Classification to record 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 Database on Enterprise Registration.
– For conditional business lines stipulated in other legal documents, the business line shall be recorded as stipulated in those legal documents.
Suggestions for recording Industry Code 2731 Manufacturing of optical fiber cables:
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 2731 | Manufacturing of optical fiber cables |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 2731 | Manufacturing of optical fiber cables (not operating at the head office) |
Case 3: Detailed
| Industry Code | Industry Name |
|---|---|
| 2731 | Manufacturing of optical fiber cables Detail: Manufacturing of PVC, XLPE insulated metal wires |
Note: Depending on each specific industry code and the specific regulations in each locality, it may be necessary to provide detailed information for the 4-digit industry code or commit to operating according to regulations.
4. Business line change service for companies and enterprises at VN Law Firm
The service for changing business lines for companies and enterprises at VN Law Firm saves clients a significant amount of time and effort. With VN Law Firm, you will be provided with business line change services for companies and enterprises, including:
- Consultation on the process and procedures for changing or adding business lines;
- Consulting clients on preparing necessary documents;
- Drafting and submitting the dossier for changing or adding business lines of the company or enterprise on behalf of the client at the Business Registration Office;
- Tracking the dossier, supplementing or correcting the dossier (if any) as required by the specialist;
- Implementing procedures for publishing business registration information on the Information Portal;
- Delivering the confirmation of business line change;
- Guiding clients on procedures to note after changing business lines…
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