Passport & Visa

Please note that all travelers, except for those exempt from visa requirement, should apply for the corresponding visa at the local Thai Diplomatic or Consular Offices before their arrival. People in possession of a valid residence permit or a valid long-term visa should check the validity of their visa in order to avoid any inconvenience.

If an entry visa is required, please allow sufficient time for this procedure:

Submit your visa application in person, at least three months before you plan to travel to Thailand in order to avoid any inconvenience. The process may take longer in certain countries, so we recommend that you contact the nearest Thai Diplomatic or Consular Offices to determine your personal case.
For more information visit the Ministry of Foreign Affairs, Kingdom of Thailand 

Invitation letter

An official letter of invitation to attend the PACCON 2023 will be forwarded to the requesting participant. However, the invitation implies no obligation by the Organizers to cover registration fees, accommodation, travel expenses, or any other costs pertaining to participation in PACCON 2023. To request your personal letter of invitation please send us an email at The invitation letter will be sent only upon completion of registration and subsequent payment. Should a prospective participant be denied a visa, a registration fee return policy will be enacted. Complete information on this policy will be announced in due time.