Industry Code 3900 Pollution Treatment and Other Waste Management Activities, latest according to Decision 36/2025/QĐ-TTg. To learn more about the details of Industry Code 3900, please refer to this article by VN Law Firm!
1. What is a business industry code?
Business industry codes are sequences of numbers encoded to represent a specific business industry. Organizations and individuals, when preparing business registration documents, must use this business industry code list for registration. The 4-digit industry code (level 4) is the code used for business registration.
The Vietnam Standard Industrial Classification (VSIC) system, promulgated under Decision 36/2025/QĐ-TTg, has a hierarchical structure with 5 levels, from general to specific:
| Level | Name | Coding | Quantity |
|---|---|---|---|
| Level 1 | Economic industry level 1 | 1 letter (from A to V) | 22 industries |
| Level 2 | Economic industry level 2 | 2 digits (according to level 1) | 87 industries |
| Level 3 | Economic industry level 3 | 3 digits (according to level 2) | 259 industries |
| Level 4 | Economic industry level 4 | 4 digits (according to level 3) | 495 industries |
| Level 5 | Economic industry level 5 | 5 digits (according to level 4) | 743 industries |
Example of industry code structure: Taking food production as an example:
- Level 1: C (Manufacturing)
- 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 3900 Pollution Treatment and Other Waste Management Activities
| Industry Code | Industry Name |
|---|---|
| 3900 | Pollution treatment and other waste management activities |
This group includes:
– Decontamination of polluted sites and ground water at current or former locations, using mechanical, chemical or biological methods;
– Decontamination of industrial plants or industrial sites, including nuclear plants and sites;
– Decontamination and cleaning of surface water after accidental pollution, for example, through collection of pollutants or through the use of chemicals;
– Cleaning up oil spills and other pollutants on land, in surface water, in oceans and seas, including coastal areas;
– Asbestos, lead paint and other toxic material removal;
– Demilitarization and clearance of mines, including detonation in place;
– Other specialized pollution control activities;
– Carbon capture and storage activities;
– Restoration of mining sites.
This group also includes: On-site pollution remediation, control, and monitoring activities.
Excludes:
– Pest control in agriculture is classified under group 01610 (Support activities for crop production);
– Water treatment for water supply purposes is classified under group 36000 (Water collection, treatment and supply);
– Waste treatment for recycling is classified under group 3830 (Recycling of waste materials);
– Waste treatment for disposal is classified under group 382 (Waste treatment and disposal);
– Street sweeping and watering is classified under group 81290 (Other cleaning services);
– Civil engineering project reclamation at mining sites is classified under industry F (Construction).

3. Suggestions for recording Industry Code 3900 Pollution Treatment and Other Waste Management Activities
– When registering a new enterprise, when notifying changes to business lines, or when requesting a new Enterprise Registration Certificate, the enterprise founder or the enterprise shall select a four-digit industry from the Vietnam Standard Industrial Classification to record the business lines in the enterprise registration dossier. The business registration authority shall guide, cross-reference, and record the enterprise’s business lines in the National Business Registration Database.
– For conditional business lines stipulated in other legal normative documents, the business line shall be recorded according to the regulations in those legal normative documents.
Suggestions for recording Industry Code 3900 Pollution Treatment and Other Waste Management Activities:
Case 1: General
| Industry Code | Industry Name |
|---|---|
| 3900 | Pollution treatment and waste management activities |
Case 2: Detailed
| Industry Code | Industry Name |
|---|---|
| 3900 | Pollution treatment and other waste management activities (only allowed to operate when fully meeting the conditions prescribed by law; no goods storage at headquarters) |
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 service for companies and enterprises at VN Law Firm
Our business line change service for companies and enterprises at VN Law Firm helps clients save a significant amount of time and effort. With VN Law Firm, you will receive business line change services for your company or enterprise, including:
- Consultation on the process and procedures for changing or supplementing business lines;
- Consulting clients on preparing necessary documents;
- Drafting and submitting on behalf of clients the dossier for changing or supplementing the company’s or enterprise’s business lines at the Business Registration Office;
- Monitoring the dossier, 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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