Employer letter explaining why a foreigner must be hired (Thai Immigration)

หนังสือชี้แจงเหตุผลและความจำเป็นในการจ้างคนต่างด้าว is a one-page letter from a Thai company to the Immigration Bureau (Sub-Division 2, Immigration Division 1, Bangkok). The company names the foreigner it wants to employ, the position and the nature of the work, and states that it advertised the job to Thai workers but no Thai candidate applied.

It is usually attached to an application to extend stay or change to a Non-B (business/employment) visa. The form is in Thai only. Ask the immigration office in advance whether it is required in your case.

• the employing company (บริษัท … จำกัด) fills it in;
• it is signed by an authorised director, whose name is written in brackets under the signature;
• the company seal is stamped next to the signature by hand after printing;
• the letter goes to immigration together with the foreigner's application.

• date of the letter (day, Thai month name, Buddhist Era year);
• company name and type of business;
• the foreigner: title (นาย/นาง/นางสาว), name as in the passport, nationality;
• the position and the nature of the work — why it needs this person;
• the authorised director who signs.

• the foreigner's application to immigration (for example TM.7 for an extension of stay);
• the employer certificate STM.1 and company documents (company affidavit, financial statements);
• the work permit and other documents the office requests.

The exact document list and fees depend on the office and the type of application — check them with the immigration office.

1. Open the chat on this page and say in any language which company hires which foreigner.
2. Explain why the job needs a foreigner — the assistant writes it in Thai for the form.
3. Check the fields and download the PDF.
4. Print, have the director sign, stamp the company seal and attach it to the application.

Official form: bangkok.immigration.go.th (PDF); also listed on immigration.go.th (item 31). Checked on 2026-10-08. This is not legal advice.