This guide provides a detailed overview of doing business in Thailand. Topics covered in the guide include investment, import and export regulations, exchange controls, tax, requirements for establishment of a business, structures for doing business, cessation or termination of a business, labor legislation, and immigration requirements. The guide provides an invaluable primer for investors new to the Thai business investment.
May 19, 2026
Thailand’s telecommunications regulator has introduced a range of new compliance obligations for telecom licensees aimed at preventing and suppressing technology crime. On May 15, 2026, the National Broadcasting and Telecommunications Commission (NBTC) published in the Government Gazette Notification on Measures for Prevention and Suppression of Technology Crime No. 2, which amends the original NBTC notification dated August 24, 2025. The amendment derives its authority from the Emergency Decree on Measures for Prevention and Suppression of Technology Crime B.E. 2566 (2023), as amended in 2025, and took effect on May 16, 2026. SIM Card Registration Cap for Non-Thai Nationals Persons without Thai nationality are now limited to a maximum of three SIM cards per person per service provider. Identity verification must be done primarily via passport. For those without a passport, acceptable alternatives include travel documents or certificates of identity issued by foreign governments, accompanied by additional Thai government-issued documents, as well as pink ID cards (for persons without Thai nationality) and white ID cards (for persons without registration status). Registration must be done in person at a branch or authorized dealer. Service providers must develop their identity verification systems and obtain NBTC approval before deployment. SIM Activation Deadline and SIM Box Prohibition Both Thai and non-Thai service users must activate their registered SIM within 60 days of registration. If they fail to do so, they must re-verify their identity in person before activation, confirming they are the same person who originally registered. Service providers must prohibit SIM box and gateway devices capable of supporting four or more SIMs from connecting to their mobile networks unless the device has received a license under the Radio Communications Act. Blacklist Enforcement Service providers must refuse registration of additional mobile numbers for persons listed on a technology crime-related database maintained by the Royal