An investor from Singapore applying for BOI investment promotion — how should the supporting documents be translated and certified?

The subject of this page is “An investor from Singapore applying for BOI investment promotion”, so it separates what is specific to this file from the standard certification chain. Before starting, make sure document numbers, issue dates and issuing-office names match across the set, then keep a digital copy of every page, including seals and signatures, then plan the timeline so certification finishes before the real filing deadline. The biggest risk in cases like this is doing the certification steps out of order, which forces a restart. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. The terms that frame this page are investor · Singapore · applying · investment. The specifics here are destination: Sg, and those decide which translation and certification level applies. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. High-resolution photos of seals and signatures help when the destination asks for re-verification. Note who signed each certification and on what date for later reference. Public holidays and embassy closures move certification queues more than most people expect. With a fixed filing date, count backwards from it and book each certification step in reverse. Foreign documents used in a work permit or incorporation file — degrees, experience letters, the parent company's certificate of incorporation, powers of attorney and passports — must be translated into Thai or English as the office requires and certified along the correct chain: certification in the country of origin, then embassy or Department of Consular Affairs legalisation as applicable. Companies are registered with the Department of Business Development (DBD), Ministry of Commerce: a private limited company is formed under the Civil and Commercial Code and a public limited company under the Public Limited Companies Act B.E. 2535 (1992), with a memorandum of association, articles and a shareholder list among the incorporation papers. Thailand deposited its instrument of accession to the Apostille Convention on 30 June 2026, but the Convention is not yet in force for Thailand, so embassy and Department of Consular Affairs legalisation remains the working route. Cost and lead time depend on page count, language pair and the certification steps the receiving authority requires, so every file is quoted before work starts. Send the checklist you were given, the applicant's nationality and the office you will file with via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

ปรึกษาฟรี — LINE @NAATI · โทร 080-5578887 · อีเมล ilc@thainotary.co.th