Industry Code 2592 Mechanical processing; metal treatment and coating, updated according to Decision 36/2025/QD-TTg. To learn more about the details of industry code 2592, please refer to this article by VN Law Firm!
1. What is a Business Industry Code?
Business industry codes are a series of numbers coded 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 codes (4 digits) are used for business registration.
The Vietnam Standard Industrial Classification (VSIC) system, issued under Decision 36/2025/QD-TTg, has a hierarchical structure with 5 levels, from general to specific:
| Level | Name | Coding | Number |
|---|---|---|---|
| Level 1 | Economic sector Level 1 | 1 letter (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 food manufacturing industry as an example:
- Level 1: C (Processing and manufacturing industry)
- 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 2592 Mechanical processing; metal treatment and coating
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating |
This group includes:
– Plating, polishing metal…
– Heat treatment of metal:
– Sand blasting, tumbling, cleaning of metal;
– Coloring, engraving, printing on metal;
– Non-metallic coating such as: Enameling, lacquering…;
– Grinding, polishing metal;
– Drilling, turning, milling, grinding, planing, chiseling, sawing, polishing, welding, joining… parts of metal frames;
– Cutting or writing on metal by laser means.
Exclusions:
– Rolling precious metals onto base metals or other metals is classified under group 24201 (Manufacture of precious metals);
– Farrier services are classified under group 01620 (Support activities for animal production).

3. Suggested ways to record Industry Code 2592 Mechanical processing; metal treatment and coating
– 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 enterprise selects the level four economic sector in the Vietnam Standard Industrial Classification to record the business line in the enterprise registration application. The Business Registration Authority guides, cross-references, and records the enterprise’s business lines in the National Enterprise Registration Database.
– For conditional business lines regulated by other legal documents, the business line shall be recorded according to the regulations in those legal documents.
Suggested ways to record Industry Code 2592 Mechanical processing; metal treatment and coating:
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating Details: Grinding, polishing metal, metal surface painting |
Case 3: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating (excluding electroplating, metal coating) (no processing at the headquarters, only operating when the competent authority approves the investment policy and meets sufficient conditions as stipulated by law). |
Case 4: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating (Excluding metal treatment, coating, electroplating) |
Case 5: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating Details: Mechanical processing of hardware accessories. |
Case 6: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating (not operating at headquarters) |
Case 7: Detailed
| Industry Code | Industry Name |
|---|---|
| 2592 | Mechanical processing; metal treatment and coating Details: mechanical processing (Not operating at headquarters) |
Note: Depending on each specific industry and business line, as well as specific regulations in each locality, it may be necessary to provide detailed descriptions for the level 4 industry code or commit to operating in accordance with regulations.
4. Services for changing business lines for companies and enterprises at VN Law Firm
Services for changing business lines for companies and enterprises at VN Law Firm help our clients save a lot of time and effort. With VN Law Firm, you will be provided with services for changing business lines for companies and enterprises, including:
- Consultation on the process and procedures for changing and adding business lines;
- Consulting clients on preparing necessary documents;
- Drafting and submitting on behalf of clients the application for changing or adding business lines of the company or enterprise at the Business Registration Office;
- Monitoring the application, supplementing or amending the application (if any) as required by the specialist;
- Performing procedures for publishing enterprise registration information on the Information Portal;
- Delivering the confirmation certificate regarding the change of business lines;
- Guiding clients on procedures to note after changing business lines…
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