Invitation Letter

Conference participants may need a Thai visa to enter Thailand. To avoid uncertainty, participants will be advised to apply for a visa as early as possible. It is recommended that they apply for a Thai visa at least 1 month in advance.

For most attendees, it is easier to apply for a Tourist ("L") visa; an invitation letter is NOT required for obtaining a Tourist visa.

If some participants need another type of visa that does require an invitation letter, the ICMSS 2025 local arrangement committees will be glad to help. To obtain an invitation letter, please send e-mail to, together with your registration info., and in the case of being an author, your accepted paper ID. The conference secretary will then send a formal invitation letter issued by the organizing committees by email. Please note that the letter may be helpful for your visa application, but cannot guarantee you a visa.


Necessary materials to apply for Thai Visa

»A passport which is valid for at least six months following the date of submission, with an entire blank page available for the visa;
»One recent, 2 inch full-faced and bareheaded passport photo (the daily life photo, photo copy or digital photo printed on the ordinary paper shall not be accepted);
»Other related application materials according to different purposes for your trip to Thailand;
»Other materials related to the visa application, deemed as necessary by the visa officer.

The above infofrmation is for reference only. For more information, please contact the local Thai Embassy in your country.

Alternatively, participants may ask their travel agents to arrange their travel to Thailand and obtain a tourist visa irrespective of whether or not they have registered with the Conference Secretary. If participants have any difficulties in obtaining their visa, they should contact the Conference Secretary.

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