D-8 extension documents differ by category. Venture investment (D-8-2) centers on the venture company certificate (or preliminary venture certificate), copies of IP certificates, the technology evaluation, business performance proof and a tax certificate; individual business investment (D-8-3) on a copy of the business registration showing the co-business owner, the original co-business agreement and proof of the Korean co-business owner’s funds (usage); and tech startup (D-8-4(S)) on the corporate registry certificate and business registration copy, proof of business operation and a tax certificate (plus patent copies if the change was granted on an IP application).
Key Summary
- D-8-2: venture (preliminary venture) certificate, IP certificate copies, technology evaluation, business performance proof, tax certificate
- D-8-3: business registration showing the co-business owner, original co-business agreement, Korean co-owner’s funds (usage), tax payment proof, business results, business site proof
- D-8-4(S): corporate registry and business registration copy, IP certificate copies if the change was granted on an IP application, business operation proof, tax certificate
- Common: application, passport, registration card, photo, proof of address
1. Why do documents differ by category?
D-8 splits into corporate investment (D-8-1), venture investment (D-8-2), individual business investment (D-8-3) and tech startup (D-8-4), and the manual sets separate extension documents for each because the structure and activity differ.
2. What are the D-8-2 extension documents?
- Application form, passport, alien registration card, 1 photo
- Copy of the business registration, corporate registry certificate
- Venture company certificate or preliminary venture certificate
- Proof of excellent technology (copies of patent, utility model, design, trademark or copyright registration, or the technology evaluation from the Korea Technology Finance Corporation or the Small and Medium Business Corporation)
- Business performance proof, tax certificate, proof of address
3. What are the D-8-3 extension documents?
- Application form, passport, alien registration card, 1 photo
- Copy of the business registration showing the co-business owner, original co-business agreement
- Copy of the investment enterprise registration
- Proof of the Korean co-business owner’s funds (usage)
- Proof of investment fund inflow, personal tax payment proof or VAT tax base certificate documents
- Business results (export/import results, etc.), proof of the business site (office lease, photos of the building exterior, office space and sign)
4. What are the D-8-4(S) extension documents?
- Application form, passport, alien registration card, 1 photo
- Corporate registry certificate and business registration copy
- Copies of patent, utility model, design or trademark registration (only for those whose status change was granted on an IP application)
- Proof related to business operation, tax certificate, proof of address
5. Points to check in advance
- Whether you used the list for your own category (D-8-2, D-8-3, D-8-4(S))
- Whether you applied first for documents that take time to issue, such as tax certificates
- Whether the co-business agreement is current
6. Common problems
- Preparing the list of another category
- Missing that documents differ depending on whether the change was granted on an IP application
- Thin proof of business performance or operation
7. How A-One Certified Administrative Agent can help
We check the category-specific document list and business proof, and organize the submission. No result can be promised, and we do not handle litigation or court representation (outside the scope of an administrative scrivener).
Frequently Asked Questions
Is a venture certificate needed for a D-8-2 extension?
Yes, the venture company certificate or preliminary venture certificate is among the extension documents.
What co-business documents apply to D-8-3 extension?
A copy of the business registration showing the co-business owner, the original co-business agreement and proof of the Korean co-owner’s funds (usage).
Is a patent certificate needed for D-8-4(S) extension?
Only for those whose status change was granted on an IP application.
Which documents are common to all categories?
The application form, passport, registration card (where applicable), photo, proof of address and business-related proof.
Which categories need a tax certificate?
D-8-2 and D-8-4(S) extension documents include a tax certificate.
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에이원 행정사사무소 (A-One Certified Administrative Agent) is an administrative office that supports document preparation and filing with the authorities. Fees vary by case and are explained during a consultation. Phone 02-309-3107 · Contact: https://investkorea.co.kr/en/contact