Industry Code 3312 Repair and Maintenance of Machinery and Equipment, latest according to Decision 36/2025/QD-TTg. To learn more about the details of industry code 3312, please refer to this article by VN Law Firm!
1. What is a business industry code?
Business industry code is a series of coded numbers representing a specific business industry. Organizations and individuals, when preparing business registration documents, must use this business industry code table for registration. A 4-digit industry code (Level 4) 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 | 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 3312 Repair and Maintenance of Machinery and Equipment
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment |
This group includes:
Repair and maintenance of industrial or commercial machinery and equipment such as sharpening or installing machine blades and teeth or providing welding repair services (e.g., engines); repair of industrial, agricultural, and other heavy machinery and equipment (e.g., material handling equipment and forklifts, machine tools, commercial refrigeration equipment, construction equipment, and mining machinery), including machinery and equipment of group 28 (Manufacture of other general-purpose machinery).
Specifically:
– Repair and maintenance of engines, except engines for motor vehicles, ships, boats, and aircraft;
– Repair and maintenance of railway locomotives;
– Repair and maintenance of pumps, compressors, and related equipment;
– Repair and maintenance of hydraulic power equipment;
– Repair of valves;
– Repair and maintenance of gears and driving elements of vehicles;
– Repair and maintenance of industrial furnaces;
– Repair and maintenance of lifting and material handling equipment;
– Repair and maintenance of industrial refrigeration equipment and air purification equipment;
– Repair and maintenance of general commercial machinery:
– Repair of power hand tools;
– Repair and maintenance of metal cutting and metal forming machine tools and accessories;
– Repair and maintenance of other machine tools;
– Maintenance and repair of agricultural tractors;
– Repair of agricultural, forestry, and logging machinery;
– Repair and maintenance of machinery and equipment for metallurgy;
– Repair and maintenance of machinery in mining, construction, and gas industries;
– Repair of food, beverage, and tobacco processing machinery;
– Repair and maintenance of textile, apparel, and leather machinery;
– Repair and maintenance of paper-making machinery;
– Repair and maintenance of plastic and rubber manufacturing machinery;
– Repair and maintenance of other special-purpose machinery of group 28 (Manufacture of other general-purpose machinery);
– Repair and maintenance of weighing equipment;
– Repair of vending machines;
– Repair of cash registers;
– Repair of electronic or non-electronic calculators;
– Repair of typewriters;
– Repair of photocopiers.
Exclusions:
– Repair and maintenance of marine and boat engines for civil use are classified under group 33150 (Repair and maintenance of transport equipment (except motor vehicles, motorcycles, mopeds, and other motor vehicles));
– Repair and maintenance of civil aircraft engines are classified under group 33150 (Repair and maintenance of transport equipment (except motor vehicles, motorcycles, mopeds, and other motor vehicles));
– Repair and maintenance of engines for military combat vehicles, ships, aircraft, and spacecraft are classified under group 33150 (Repair and maintenance of transport equipment (except motor vehicles, motorcycles, mopeds, and other motor vehicles)).
– Installation, repair, and maintenance of industrial furnaces and other heating equipment are classified under group 4322 (Installation of water supply and drainage systems, heating, and air-conditioning systems);
– Installation, repair, and maintenance of elevators and escalators are classified under group 43290 (Installation of other building systems);
– Repair and maintenance of computers are classified under group 95100 (Repair and maintenance of computers, information, and communication equipment);
– Repair and maintenance of motor vehicle engines are classified under group 95310 (Repair and maintenance of automobiles and other motor vehicles).

3. Suggested ways to record Industry Code 3312 Repair and Maintenance of Machinery and Equipment
– When registering a business establishment, when notifying changes to business lines, or when requesting a change of business registration certificate, the business founder or enterprise selects the Level 4 economic sector in the Vietnam Standard Industrial Classification to record business lines in the enterprise registration dossier. The business registration authority guides, cross-checks, and records the enterprise’s business lines in the National Business Registration Database.
– For conditional business lines stipulated in other legal documents, the business lines are recorded according to the regulations in those legal documents.
Suggested ways to record Industry Code 3312 Repair and Maintenance of Machinery and Equipment:
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment (excluding mechanical processing, waste recycling, electroplating at the head office) |
Case 3: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment Details: Repair of children’s toy machinery and equipment (excluding toys harmful to personality education, children’s health, or affecting security, order, and social safety) |
Case 4: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment Details: Repair and maintenance of industrial and civil equipment |
Case 5: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment Details: Repair of industrial machinery and equipment, electronic equipment, electrical equipment (no repair at the head office; excluding metal treatment, coating, electroplating) |
Case 6: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment Details: Repair and maintenance of machinery and equipment |
Case 7: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment (not operating at the head office) |
Case 8: Detailed
| Industry Code | Industry Name |
|---|---|
| 3312 | Repair and maintenance of machinery and equipment (no forging, casting, cutting, rolling, drawing metal, stamping, forming, welding, painting, waste recycling, electroplating at the head office) |
Note: Depending on the specific industry code and business line, as well as local regulations, it may be necessary to provide detailed descriptions for the Level 4 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 customers save a lot 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 and supplementing business lines;
- Consulting clients on preparing necessary documents;
- Drafting and filing the application for changing and supplementing business lines on behalf of clients at the Business Registration Office;
- Monitoring the application, supplementing or amending the dossier (if any) as required by the specialist;
- Performing procedures to publish business 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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