CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U
| Tax code | 0401961378 |
| Vietnamese name | CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U |
| Abbreviated name | B4U E&C CO.,LTD |
| English name | B4U CONSTRUCTION AND ENGINEERING COMPANY LIMITED |
| Trading name | B4U E&C CO.,LTD |
| Address | 41 Doãn Uẩn, Phường Ngũ Hành Sơn, TP Đà Nẵng, Việt Nam. |
| Legal representative | Nguyễn Duy Long |
| Business registration certificate issue date | 15/03/2019 |
| Operations start date | 15/03/2019 |
| Fiscal year end | 31/12 |
| Data updated | 09/09/2026 01:52 |
Part of the "Tax Code Cleanup" campaign
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CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U is currently in status Not operating at registered address. Delayed handling may incur late payment interest and administrative penalties. Use our tool to estimate the penalty and get a route to resolve it.
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Business lines
| F4101 | Construction of residential buildings |
| C2592 | Treatment and coating of metals; machining |
| C3320 | Installation of industrial machinery and equipment |
| F4102 | Construction of non-residential buildings |
| F4221 | Construction of electricity projects |
| F4222 | Construction of water supply and sewerage projects |
| F4223 | Construction of telecommunications projects |
| F4299 | Construction of other civil engineering projects n.e.c. |
| F4311 | Demolition |
| F4312 | Site preparation |
| F4321 | Electrical Installation |
| F4322 | Plumbing, Heating and Air-Conditioning Installation |
| F4329 | Other Building Services Installation |
| F4330 | Building Completion and Finishing |
| G4659 | Wholesale of other machinery and equipment |
| G4662 | Wholesale of metals and metal ores |
| G4759 | Retail Sale of Household Electrical Appliances, Beds, Cabinets, Tables, Chairs, Lamps and Other Household Goods Not Elsewhere Classified in Specialized Stores |
| M7020 | Management consultancy activities |
| M7110 | Architectural and engineering activities and related technical consultancy |
| M7120 | Technical testing and analysis |
| M7310 | Advertising |
| N7730 | Renting of other machinery, equipment and tangible goods without operator |
Frequently asked questions about CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U
What business lines does CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U operate in?
The main business line of CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U is Xây dựng nhà để ở (business line code F4101). The entity is also registered for 21 additional business line(s), all listed under "Business lines" above.
Does CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U have any other names?
Besides its full name, CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U is also registered under the name B4U CONSTRUCTION AND ENGINEERING COMPANY LIMITED. When searching, either this name or tax code 0401961378 will return the same result.
What is the tax code of CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U?
CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U has tax code 0401961378, issued on 15/03/2019. This number identifies the entity on invoices, vouchers and in all tax administrative procedures under Article 11 of the Law on Tax Administration 2025.
Is CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U still operating?
The status of tax code 0401961378 of CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U is NNT không hoạt động tại địa chỉ đã đăng ký according to the latest synced data (as of 09/09/2026). The list of tax code statuses is set out in Appendix I of Circular 90/2026/TT-BTC.
Who is the legal representative of CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U?
The legal representative of CÔNG TY TNHH KỸ THUẬT VÀ XÂY DỰNG B4U is Nguyễn Duy Long according to the tax registration information linked to tax code 0401961378.
Legal basis: Article 11 of the 2025 Law on Tax Administration and Circular 90/2026/TT-BTC on tax registration (effective 01/7/2026). See also tax code structure and the list of 10 tax code statuses.
Business statistics in Phường Ngũ Hành Sơn
3,869
Total businesses
1,945
Operating
1,919
Ceased / suspended
0
New in last 90 days
Across Thành phố Đà Nẵng: 55,014 businesses, of which 23,082 are operating.
Common business lines
By legal form
Limited liability company
2,314
Single-member limited liability company
886
Joint stock company
521
Sole proprietorship
81
School / educational institution
16
Other state agency
13
By status
Taxpayer issued tax code
1,942
Not operating at registered address
1,327
Temporarily suspended operations
316
Ceased operations; tax code closure not yet completed
182
Ceased operations; tax code closure completed
94
Pending verification of operating status at registered address
4
Businesses with legal representative "Nguyễn Duy Long"
A total of 103 businesses share the same legal representative name