In general, visa is required in Thailand but other national countries are not required to apply tourist visa when visiting the country. In compliance with the new visa exemption the list below is eligible to enter Thailand without visa through land boarder checkpoint for only twice a year. Entering the country with international airports won’t be affected by this regulation.
Nationals of the following countries and territories are entitled for a 30-days Visa Exemption:
Nationals from other countries and territories are required to obtain their visa according to their purpose of their visit, mainly for this Global Air Cargo Alliance Event delegates are advised to have their tourist visa. A tourist visa is a 60-day visit in the country which in Thailand, it can be extended for up to another 30 days by means of a visa run. If you are planning to extend your visa, you can convert the visa to a Non-Immigrant Visa which will require you to go to the nearby city or country such us Penang and Kuala Lumpur, Malaysia.
For more reference about Thailand Visa, you can visit the following link below:
RWSolutions Ltd. Unit 1406 14th Floor,
The Broadway, 54-62 Lockhart Road, Wan Chai