A distributor or agency appointment letter — what should you know about using a foreign corporate document inside Thailand?

The point raised here is “A distributor or agency appointment letter”, so it separates what is specific to this file from the standard certification chain. 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. If the receiving body confirmed its requirements by email, keep that message with the file. Keep a copy of every source document plus the receipt or docket from each step. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. The specifics here are document type: Distributor, and those decide which translation and certification level applies. The terms that frame this page are distributor · agency · appointment · letter. The most frequent cause of delay in this group is missing supporting documents on the first submission. A key variable is the filing channel (in person, agent or online), which sets the copy format to prepare. 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. A corporate document issued abroad for use with a Thai authority — a parent-company certificate or a shareholders' resolution, for example — is normally legalised in the country of origin and by the Royal Thai Embassy there, then translated into Thai and certified by the Department of Consular Affairs before it is filed with the DBD or the relevant agency. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026, but the Convention is not yet in force for Thailand, so consular legalisation through the Ministry of Foreign Affairs and the relevant embassy remains the working route; confirm the current requirement with the destination before filing. Foreign participation in business in Thailand falls under the Foreign Business Act B.E. 2542, which sets out restricted business lists, while investment promotion is administered by the Board of Investment under the Investment Promotion Act B.E. 2520 as amended; the document set to be translated differs according to the route used. ILC handles document work only — translation, certification of the translation, notarial signature certification and the legalisation run at the Ministry of Foreign Affairs and embassies. ILC is not a registrar, auditor or tax adviser and cannot guarantee the decision of any authority or counterparty. Cost and lead time depend on page count, the language pair and the certification steps the destination requires, so every file is quoted before work starts. Send a scan of the documents together with the receiving authority's or counterparty's own instructions 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