Est. 2019 · Khon Kaen · Bangkok · Udon · Nong KhaiTHEN
§ Notarial Services Attorney

Licensed Notary Public Attorneys 6 registered

All six attorneys are registered with the Lawyers Council of Thailand under Royal Patronage. Their notarial licences certify signatures and documents for embassies, foreign governments, and international visa applications.

View all licences

Registered Notarial Services Attorney · Lawyers Council of Thailand

Business licences & investment promotion · SKU CORP-06 · ภาษาไทย

US Treaty of Amity certification

The 1966 Treaty of Amity and Economic Relations between Thailand and the United States allows US-owned businesses to operate more broadly than the general Foreign Business Act framework, subject to carved-out sectors. This engagement covers nationality certification through the US Embassy and the certificate application with the Department of Business Development. Fees are quoted after we review your structure and documents. Ask by phone, LINE or email — there is no cart and no online payment.

Service fee
Quoted after reviewing your structure and documents — ask our staff by phone, LINE or email (no online cart).
Typical turnaround
Typically 4–8 weeks, subject to embassy and registrar queues
Used for
US shareholders seeking majority ownership of a Thai company
Government fees
Authority fees follow the receiving agency's published tariff on the filing date and are charged at cost, separately from our service fee.

What you receive

  • Shareholder nationality certification pack for the US Embassy
  • Treaty certificate application with the registrar
  • A check that the intended activity falls outside the Treaty's excluded sectors

What to prepare

  • Evidence of US nationality for shareholders or parent-company good standing
  • Thai company registration documents
  • Description of the intended activity

Authorities involved

  • US Embassy Bangkok
  • Department of Business Development

Legal basis

Foreign Business Act B.E. 2542 (1999), which sets out Lists 1, 2 and 3 and requires a licence or certificate before a business with foreign shareholding of one half or more may operate a restricted activity. Read with the 1966 Treaty of Amity and Economic Relations between Thailand and the United States.

Approval is at the discretion of the receiving authority — the Department of Business Development, the Revenue Department, the Department of Employment, the Board of Investment and the Department of Intellectual Property, as applicable. A document-preparation provider cannot guarantee an outcome. This page is general information, not legal or tax advice for a specific case.

Frequently asked questions

How much does US Treaty of Amity certification cost?

We do not publish prices. The fee depends on the shareholding structure, business activity, document volume and the number of returns to be filed. Staff confirm the fee after reviewing your documents and agreeing the filing sequence. Government fees are charged at cost, separate from the service fee. Contact 083-249-4999 · LINE @NYC168 · contact@ilc.ltd.

How long does it take?

Typically 4–8 weeks, subject to embassy and registrar queues This is a typical observed range that depends on document completeness and the authority's queue, so it is not a guaranteed deadline.

What do I receive?

Shareholder nationality certification pack for the US Embassy · Treaty certificate application with the registrar · A check that the intended activity falls outside the Treaty's excluded sectors

Which authorities are involved?

US Embassy Bangkok · Department of Business Development

What do I need to prepare?

Evidence of US nationality for shareholders or parent-company good standing · Thai company registration documents · Description of the intended activity

How are government fees charged?

Authority fees follow the receiving agency's published tariff on the filing date and are charged at cost, separately from our service fee.

What is the legal basis?

Foreign Business Act B.E. 2542 (1999), which sets out Lists 1, 2 and 3 and requires a licence or certificate before a business with foreign shareholding of one half or more may operate a restricted activity. Read with the 1966 Treaty of Amity and Economic Relations between Thailand and the United States.

How do I order — is there an online cart?

There is no cart and no online payment. Every engagement starts by sending your structure details and document images for staff review, after which the steps and fee are confirmed. Contact 083-249-4999 · LINE @NYC168 · contact@ilc.ltd.

Related corporate services

See all 16 corporate services →

7 knowledge bases, 4,882 keywords and 3,057 answered questions written by our lawyers and translators. Free to read, no sign-up.

  • Master Service Hub — every service we file

    The cross-service index: certified translation, interpreting, visa/work permit/BOI, tax-legal-estate, cross-border M&A, aviation & maritime, and holding-company structuring.

    Scoped quote after a free consultation by phone, LINE or email

    1,000 keywords · 649 questions · 10 clusters

  • Certified translation — every language

    Certified translation across civil, academic, corporate, contractual, financial, medical, technical and IP documents — with the Notary → MFA → embassy legalization chain handled end to end.

    Thai–English THB 500–1,200/page · other languages THB 800–2,500/page

    1,000 keywords · 500 questions · 16 clusters

  • Thai MFA consular legalization

    Thai MFA legalization workflow: fees, turnaround, inbound foreign documents, and how the chain connects to destination-country apostille requirements.

    THB 200/stamp (3 working days) · express THB 400/stamp

    882 keywords · 500 questions · 16 clusters

Browse the full knowledge index →

Not sure which service you need? Read the guides

Each guide answers first, then explains: decision criteria, comparison tables, the real process and the mistakes we see most often.

Talk to us first: 083-249-4999 · LINE @NYC168 · contact@ilc.ltd