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Q1232. How are project investment feasibility studies processed for Thai commercial use?

Answered by the NYC Visa & Translation legalization desk
For Thai commercial use, a foreign feasibility study must meet the receiving organization’s requirements before a legalization route is selected. Ask the Thai investor, lender, or authority which sections, signatures, and supporting records require authentication. Have the responsible consultant or company sign the final version, and obtain notarization if required for a privately prepared report. Confirm the issuing-country authentication steps and the relevant Thai embassy’s legalization requirements, including any subsequent Thai MFA step. Arrange a Thai translation in the format requested by the recipient. Legalization authenticates signatures or seals, not investment assumptions. A common pitfall is submitting an authenticated summary while omitting required financial annexes. Verify requirements with the relevant Thai embassy before filing.
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Official sources — legalization, apostille, notary
The information on this page follows the official sources below. Always check the latest version before you file.
- Department of Consular Affairs — document legalisation— Ministry of Foreign Affairs
- Legalization e-Service appointment system— Department of Consular Affairs
- HCCH — Apostille Convention (5 October 1961) full text & status table— Hague Conference on Private International Law
- Lawyers Council of Thailand — Notarial Services Attorneys— Lawyers Council of Thailand
- Department of Provincial Administration — civil & family registration— Department of Provincial Administration
- Royal Thai Government Gazette— Royal Thai Government Gazette
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