Industry Code 3313 Repair and maintenance of electronic and optical equipment, most recent according to Decision 36/2025/QD-TTg. To learn more about the details of industry code 3313, 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. The 4-digit (level 4) industry code is the code used for business registration.
The Vietnam Standard Industrial Classification (VSIC), issued under Decision 36/2025/QD-TTg, has a hierarchical structure with 5 levels, from general to specific:
| Level | Name | Code | Quantity |
|---|---|---|---|
| Level 1 | Level 1 Economic Activity | 1 letter (from A to V) | 22 industries |
| Level 2 | Level 2 Economic Activity | 2 digits (according to level 1) | 87 industries |
| Level 3 | Level 3 Economic Activity | 3 digits (according to level 2) | 259 industries |
| Level 4 | Level 4 Economic Activity | 4 digits (according to level 3) | 495 industries |
| Level 5 | Level 5 Economic Activity | 5 digits (according to level 4) | 743 industries |
Example of industry code structure: Taking the food production industry as an example:
- Level 1: C (Manufacturing Industry)
- Level 2: 10 (Food processing and production)
- 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 3313 Repair and maintenance of electronic and optical equipment
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment |
This group includes:
– Repair and maintenance of equipment in groups 26510 (Manufacture of measuring, testing, navigating, and control equipment), 26600 (Manufacture of irradiation, electromedical and electrotherapeutic equipment), and 26700 (Manufacture of optical instruments and equipment), excluding equipment considered household appliances;
– Repair and maintenance of measuring, testing, navigating, and control equipment in group 26510 (Manufacture of measuring, testing, navigating, and control equipment), specifically:
+ Repair and maintenance of aircraft engine equipment.
+ Repair and maintenance of automatic exhaust system testing equipment,
+ Repair and maintenance of gas analysis equipment,
+ Repair and maintenance of equipment for testing and monitoring chemical, physical, and electrical properties.
+ Repair and maintenance of investigation tools.
+ Repair and maintenance of radiation testing and detection equipment.
This group also includes:
– Repair of X-ray, electrotherapy, and electromedical instruments and equipment in group 26600 (Manufacture of irradiation, electromedical and electrotherapeutic equipment), specifically:
+ Repair and maintenance of magnetic resonance imaging (MRI) equipment,
– Repair and maintenance of medical ultrasound equipment,
+ Repair and maintenance of pacemakers,
+ Repair and maintenance of hearing aids.
+ Repair and maintenance of electrocardiographs.
+ Repair and maintenance of endoscopic equipment.
+ Repair and maintenance of imaging equipment.
– Repair of optical instruments and equipment, i.e., equipment in group 26700 (Manufacture of optical instruments and equipment), if primarily used commercially, such as: magnifiers, binoculars, microscopes (excluding electron and proton research types), telescopes, prisms and lenses (excluding spectacles), photographic equipment.
Exclusions:
– Repair of photocopiers classified under group 33120 (Repair and maintenance of machinery and equipment);
– Repair and maintenance of computers and peripheral equipment classified under group 95100 (Repair and maintenance of computers, information and communication equipment);
– Repair of computer projectors classified under group 95100 (Repair and maintenance of computers, information and communication equipment);
– Repair and maintenance of communication equipment classified under group 95100 (Repair and maintenance of computers, information and communication equipment);
– Repair of commercial televisions and video cameras classified under group 95100 (Repair and maintenance of computers, information and communication equipment);
– Repair of household video cameras classified under group 95210 (Repair and maintenance of household electronic audio-visual equipment);
– Repair of watches and clocks classified under group 95290 (Repair and maintenance of bicycles, watches, and other personal and household goods n.e.c.).

3. Suggested ways to record Industry Code 3313 Repair and maintenance of electronic and optical equipment
– When registering a new enterprise, when notifying changes to business lines, or when requesting a change to the Enterprise Registration Certificate, the enterprise founder or the enterprise shall select the four-digit economic activity in the Vietnam Standard Industrial Classification System to record the business line in the enterprise registration dossier. The business registration authority shall guide, cross-check, and record the enterprise’s business lines in the National Enterprise Registration Database.
– For conditional business and investment lines stipulated in other legal documents, the business line shall be recorded according to the provisions in those legal documents.
Suggested ways to record Industry Code 3313 Repair and maintenance of electronic and optical equipment
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment (Excluding mechanical processing, waste recycling, plating, and electroplating at the headquarters) |
Case 3: Detailed
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment Detail: Repair and maintenance of electronic and optical equipment |
Case 4: Detailed
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment (Excluding mechanical processing, waste recycling, plating, and electroplating at the headquarters) |
Case 5: Detailed
| Industry Code | Industry Name |
|---|---|
| 3313 | Repair and maintenance of electronic and optical equipment Detail: Repair and maintenance of aircraft engine equipment |
Note: Depending on the specific industry code and business line, as well as local regulations, 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 services for companies and enterprises at VN Law Firm
Business line change services for companies and enterprises at VN Law Firm help our valued customers save 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 procedures for changing and supplementing business lines;
- Consultation for clients on preparing necessary documents;
- Drafting and submitting on behalf of clients the application for changing and supplementing business lines of the company/enterprise at the Business Registration Office;
- Tracking the application, supplementing or amending the application (if any) as required by the specialist;
- Carrying out the procedure for publicizing 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…
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