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

The matter being asked about is “An investor from Japan applying for BOI investment promotion”, so the answer below starts with what this case actually needs before setting out the general rules. The condition most often overlooked is that name spelling must match across every document in the set. A key variable is the filing channel (in person, agent or online), which sets the copy format to prepare. Before starting, keep a digital copy of every page, including seals and signatures, then make sure document numbers, issue dates and issuing-office names match across the set, then ask in advance which category of certified translator the destination accepts. The specifics here are destination: Jp, and those decide which translation and certification level applies. The terms that frame this page are investor · Japan · applying · investment. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. Documents with a short validity window should be produced as close to the filing date as possible. Public holidays and embassy closures move certification queues more than most people expect. High-resolution photos of seals and signatures help when the destination asks for re-verification. Keep a copy of every source document plus the receipt or docket from each step. 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