General Information

Congress Name: The 20th Asian Chemical Congress

Theme: “Responsible Chemical Sciences for World Sustainability”

Organized by: The Chemical Society of Thailand under the Auspices of The Federation of Asian Chemical Societies (FACS)

Event date: June 23-27, 2025 In conjunction with The 22nd FACS General Assembly on June 22, 2025

Location: The Berkeley Hotel Pratunam, Bangkok, Thailand



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



Proof of vaccination is NO longer required.

Travelers from the listed counties requiring negative RT-PCR test results before departure from Thailand should have health insurance covering at least 10,000 USD for COVID-19 treatment that covers the duration of stay in Thailand plus 7 additional days.

Those with business arrangements. Including flight crews and students, may have an official letter from the host or other form of insurance to cover such need.

The quarantine officer will randomly check the proof of insurance of travelers from the listed countries. If that traveler does not have proof of insurance, the traveler will have to purchase health insurance before immigration.

Holders of Thai passport and transit/transfer passengers are exempted from the health insurance checks.

The airlines must adhere to related regulation and comply with the guidance as appropriate such as asking passengers to wear mask at all times except during meals or emergency situations.