An investor from Singapore registering a branch of a foreign company — how should the supporting documents be translated and certified?

The case under review is “An investor from Singapore registering a branch of a foreign company”, so it flags what usually causes documents like this to be rejected before summarising the general practice. After certification, scan the full set before it leaves your hands. Record the reference number of each certification layer; it is the fastest way to trace status. 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. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. Before starting, check that names are spelled identically to the passport or ID card on every page, then confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then count the number of certified sets needed before work starts, because extra sets restart the certification steps. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. What changes the timeline most here is whether the source documents are complete on day one. The terms that frame this page are investor · Singapore · registering · branch. The specifics here are destination: Sg, and those decide which translation and certification level applies. 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