How do I apostille a Thai Company Affidavit / Certificate for United States?
NAATI Thailand handles the full Thai-Apostille workflow for the Company Affidavit / Certificate destined for United States 🇺🇸: (1) certified translation by a registered translator into English, (2) Notary Public certification of the translator's signature, (3) MFA legalization at the Department of Consular Affairs (Chaeng Watthana). Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026, with entry into force for Thailand on 28 February 2027, until then, embassy legalisation may still be required for United States — confirm the current chain with the receiving authority. Package quoted on request, turnaround 7 วันทำการ. Scan-first via LINE @NAATI from anywhere in Thailand or overseas.
Source: Thai Notary Law & Service Co., Ltd. — DBD 0405565001923
Company Affidavit / Certificate Apostille for United States — end-to-end workflow
NAATI Thailand operates a dedicated Apostille desk for the Thai Company Affidavit / Certificate (issued by Department of Business Development), with end-to-end delivery to United States 🇺🇸. We translate, notarise and walk the file through the Ministry of Foreign Affairs at Chaeng Watthana under one job number — the workflow most consulates, universities and immigration officers in United States expect to see.
Why Apostille (not Embassy Legalisation) for United States — Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026, with entry into force for Thailand on 28 February 2027. United States is a Hague member, which means a single Thai MFA legalization stamp replaces the previous Embassy-of-United States legalisation step. The chain is shorter, the cost is lower, and the apostille is internationally verifiable from a register number.
Certified translation requirement — Receiving authorities in United States require the Company Affidavit / Certificate in English. The translation must be performed by a Certified Translator (ATA-preferred). We allocate the job to a senior translator with at least 8 years of certified-translation experience; the file is bilingually proofread by a second linguist before notarisation.
Document preparation before MFA — หนังสือรับรองตัวจริง (อายุไม่เกิน 30 วัน) + แปล + Notary. ต้องขอใหม่ทุกครั้ง — อายุ 30 วันเท่านั้น. We confirm the romanised spelling of your name against your passport bio-page in writing before drafting, so the apostilled translation matches every other United States-side filing (visa, civil registry, university, professional council).
Typical use cases in United States — เปิดสาขาต่างประเทศ; เซ็นสัญญา cross-border; ประมูลงานต่างประเทศ; K-1 Fiancé(e) Visa; CR-1/IR-1 Spouse Visa; F-1 Student Visa. We have routed Company Affidavit / Certificate apostille files to United States for partner / family visas, study, work permits, marriage registration, citizenship by descent, civil-status updates, and corporate / banking matters.
Step-by-step workflow — (1) ขอรายการเอกสารจากผู้รับของคำร้องจริง; (2) ตรวจต้นฉบับ สำเนา และหลักฐานเชื่อมชื่อ; (3) ยืนยันภาษาและคุณสมบัติผู้แปลตามผู้รับ; (4) ตรวจนิติกรณ์กับกรมการกงสุลและสถานทูตตามวันยื่น ไม่ถือว่า Thai Apostille พร้อมใช้แล้ว; (5) ตรวจชุดส่งมอบและวิธียื่นตามผู้รับ.
Why receiving authorities accept our package — Each apostilled bundle leaves our chambers with: original Thai document (or certified true copy), certified English translation on letterhead with translator's signature and stamp, Notary Public seal certifying the translator's signature, MFA legalization on the translation (and original where required), and a numbered certificate of accuracy. This is the exact stack United States consulates, civil registries and the receiving authority routinely accept.
Working tips for United States-bound clients — Send the sharpest scan you can (300 dpi or better, all four corners visible). Tell us the receiving authority by name so we can pick the correct certification template. Allow 7 วันทำการ for the full chain. If you need an apostilled hard-copy delivered overseas, request DHL on intake and we will bundle the courier into the quote.
Typical use cases in United States
- เปิดสาขาต่างประเทศ
- เซ็นสัญญา cross-border
- ประมูลงานต่างประเทศ
- K-1 Fiancé(e) Visa
- CR-1/IR-1 Spouse Visa
- F-1 Student Visa
- USCIS Adjustment of Status
- Marriage in US (state-specific)