Submitting an application for visa extension in the case of performing duties or missions for government agencies, state enterprises, other government agencies, embassies, consulates, or international organizations has the requirements as follows: 

Requirements 

1. Foreigners must be certified and requested by the government agencies at the department level or equivalent, the head of a state enterprise or heads of other government agencies or from the police department at the commander level or equivalent or above, or from the commander-level military service under the Ministry of Defense, Royal Thai Armed Forces, Royal Thai Army, or Royal Thai Air Force, with the rank of Major General, Rear Admiral, Air Marshal, or higher in relevant parts or from international organizations;

2. In the event of a particular person staying more than 90 days, it shall be considered by the supervisor of the Immigration Office or by the assigned deputy supervisor of the Immigration Office. 

Required documents

1. TM.7 form;

2. Copy of the applicant's passport;

3. Confirmation letter from the government agencies at the department level or equivalent, or the head of a state enterprise or heads of other government agencies from the police department at the commander level or equivalent or above, or from the commander-level military service under the Ministry of Defense, Royal Thai Armed Forces, Royal Thai Army, or Royal Thai Air Force, with the rank of Major General, Rear Admiral, Air Marshal, or higher in relevant parts or from international organizations.

Information as of 8 February 2023

Source: Immigration Office

Tel. 1178 or +66 2572 8500