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How to fill in a power of attorney for Thai filings

Most delays with a new client are not about the product. They are about a power of attorney signed by the wrong person, missing a stamp, or naming the wrong task. This is the order we fill one in.

Published 2026-09-30 · 7 min read

Before you start: who signs, and for whom

The company is the grantor. It signs through the directors who have signing power in its company certificate, in the combination the certificate states, for example two directors together with the company seal. Attach that company certificate to the power of attorney.

ItemWhat to prepareCommon mistake
Company certificateRecent certificate from the Department of Business Development (agencies usually want it issued within 6 months)An old certificate with directors who have since changed
Grantor signaturesThe directors named with signing power, in the combination the certificate requiresOne director signs when the certificate requires two
GranteeFull name, ID card or passport number and address of each person who will fileA nickname or a company name instead of a person
TasksThe agency, the law and the acts: file, amend, reply to officials, receive certificatesOnly "handle FDA matters" with no act or product named
Stamp duty10 THB for one act, 30 THB for more than one actNo stamp, or a 10 THB stamp on a document used many times
WitnessesTwo witnesses signWitness lines left blank

Step by step

Thai FDA online filing: Open ID and system rights

Thai FDA's e-submission system (Skynet) uses a personal Open ID account tied to each filer's ID number, not a company login. The company therefore gives a power of attorney to each person who will file, and the FDA opens system rights for those people under the company.

StepWhoWhat happens
1. Open IDEach filerCreate an account at egov.go.th with a working e-mail, then confirm it with the 13-digit ID number
2. Power of attorneyCompanySign a power of attorney naming each filer and the product categories
3. Request system rightsFilerSubmit the power of attorney and company documents to the FDA division or provincial office
4. Rights openedThai FDAThe filer logs in to privus.fda.moph.go.th as an entrepreneur and files for the company
Each agency and division may have its own form: Thai FDA divisions, TISI, the Department of Business Development and customs brokers often provide templates. Use theirs when they exist; the rules above still apply. Keep the original: many offices ask to see it.

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