Thailand's Visa
As a general rule, any foreigner seeking entry into the Kingdom of Thailand for business, investment, study, medical treatment, mass media, religion, employment and other purposes is required to apply for a visa from a Thai Embassy or Consulate-General.
However, passport holders from 40 countries including Singapore, Republic of Korea, Japan, US, Australia, Canada, UK, and Hong Kong SAR do not require a visa when entering Thailand for tourism purposes if their stay in the Kingdom does not exceed 30 days. The complete list of the 40 countries can be found at http://www.mfa.go.th/web/12.php#Tourist.
For general information about Thailand's visa, please visit the official link at http://www.mfa.go.th/web/12.php.
For participants who have to apply for Thailand's visa, please contact the Royal Thai Embassies and Consulates in your countries and the contact details can be found at http://www.thaiembassy.org.
For the REGISTERED AUTHORS who need the hardcopy of signed invitation letter for visa application purpose, please send the e-mail to icics05@kmitl.ac.th under the topic "Request for Signed Official Invitation Letter." In the e-mail, please include your accepted and registered paper ID and its title with your mailing information.