CÔNG TY TNHH KEYSTACK LABS
| Tax code | 0402247423 |
| Vietnamese name | CÔNG TY TNHH KEYSTACK LABS |
| Abbreviated name | KEYSTACK LABS CO., LTD |
| English name | KEYSTACK LABS COMPANY LIMITED |
| Trading name | KEYSTACK LABS CO., LTD |
| Address | 35 Thái Phiên, Phường Hải Châu, TP Đà Nẵng, Việt Nam. |
| Legal representative | Nguyễn Thanh Long |
| Business registration certificate issue date | 30/08/2024 |
| Operations start date | 30/08/2024 |
| Fiscal year end | 31/12 |
| Data updated | 28/09/2026 13:06 |
Business lines
| J5820 | Software publishing |
| G4651 | Wholesale of computers, computer peripheral equipment and software |
| J5911 | Motion picture, video and television programme production |
| J5913 | Motion picture, video and television programme distribution |
| M7020 | Management consultancy activities |
| M7310 | Advertising |
| M7320 | Market research and public opinion polling |
| M7410 | Specialized design activities |
| M7420 | Photographic activities |
| N8230 | Organization of conventions and trade shows |
| P8559 | Other education n.e.c. |
Frequently asked questions about CÔNG TY TNHH KEYSTACK LABS
What business lines does CÔNG TY TNHH KEYSTACK LABS operate in?
The main business line of CÔNG TY TNHH KEYSTACK LABS is Xuất bản phần mềm (business line code J5820). The entity is also registered for 10 additional business line(s), all listed under "Business lines" above.
How is tax code 0402247423 structured?
Tax code 0402247423 consists of 10 digits. Under Article 5 of Circular 90/2026/TT-BTC, the first two digits 04 are the segment prefix; the seven digits 0224742 fall within an ascending sequence from 0000001 to 9999999; the digit 3 is the check digit. A 10-digit code is issued to an organization that is an independent unit.
What information is needed to issue an invoice to CÔNG TY TNHH KEYSTACK LABS?
The three mandatory fields on an invoice are the entity name CÔNG TY TNHH KEYSTACK LABS, tax code 0402247423 and address 35 Thái Phiên, Phường Hải Châu, TP Đà Nẵng, Việt Nam.. Check the tax code status again right before issuing an invoice, because an invoice issued to an entity that is not operating at its registered address risks being rejected at tax finalization.
Is CÔNG TY TNHH KEYSTACK LABS still operating?
The status of tax code 0402247423 of CÔNG TY TNHH KEYSTACK LABS is NNT đã được cấp MST according to the latest synced data (as of 28/09/2026). The list of tax code statuses is set out in Appendix I of Circular 90/2026/TT-BTC.
Does CÔNG TY TNHH KEYSTACK LABS have any other names?
Besides its full name, CÔNG TY TNHH KEYSTACK LABS is also registered under the name KEYSTACK LABS COMPANY LIMITED. When searching, either this name or tax code 0402247423 will return the same result.
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 Hải Châu
4,830
Total businesses
1,733
Operating
3,090
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
2,525
Single-member limited liability company
1,030
Joint stock company
781
Sole proprietorship
320
Unclassified
38
Other state agency
26
By status
Not operating at registered address
2,425
Taxpayer issued tax code
1,729
Ceased operations; tax code closure not yet completed
284
Temporarily suspended operations
269
Ceased operations; tax code closure completed
112
Transferred to another tax authority (awaiting receiving authority)
5
Businesses with legal representative "Nguyễn Thanh Long"
A total of 860 businesses share the same legal representative name