Effective Thai is licensed & meets international standards
Thai Ministry of Education
Licensed by Thai Ministry of Education, registration ช.ม. 01-013/2549.
Office of Private Education Commission
Licensed by the Office of Private Education Commission, to conduct Effective Thai training courses.
Chiang Mai Provincial Education Office
In Chiang Mai, we are supervised by the Chiang Mai Provincial Education Office.
ISO 9001:2025
ISO 9001:2025 certified by Bureau Veritas, certification TH 09000391.
EFL Learning Centre School
Effective Thai courses are registered under the umbrella of EFL Learning Centre School. (School License no. cm.013 / 2549)
UK Accreditation
Accredited by UKAS, the UK’s official certification authority.
Local & International recognition
Recognized by TISI for meeting international ISO standards.
Ministry of Education
Presents this honorary plaque to
Mrs. Wilaiwan Wannachotphawet
President of Non-Formal Private Education Committee, Chiang Mai Province
In recognition of her dedication and valuable contributions to private education
on the occasion of the 48th Annual Private Education Day
in the year 2024,
held in Tak Province.
May you be blessed with continued happiness, prosperity, and strength in your ongoing service.
Presented on February 9, 2024
(Signed)
Mr. Suthep Kaengsantia
Permanent Secretary, Ministry of Education
Dr. Wilaiwan Wannachotphawet, PhD. participated in the royal-sponsored training program “Dhammanava-Wang” on 13th July 2025.
School Manager
School Board Director
Meeting with Mr. Nataphol Teepsuwan, Aug 2019 in Chiang Mai
(From left)
Dr.Ying and Dr.Kanokwan Wilawan (Minitry of Education), other school directors
Oct 2019.
Licensed and Globally Accredited Thai Language School
Effective Thai, operated by DSS International Language Services Co., Ltd., is a licensed by the Thai Ministry of Education (License No. ช.ม. ๐๑-๐๑๓/๒๕๔๙) under the name Effective Foreign Languages Chiangmai (Lanna) School. The school is certified ISO 9001:2015 by Bureau Veritas (No. TH 09000391), a globally recognized accreditation body, with additional approval from the United Kingdom Accreditation Service (UKAS). It is also the only language-training company recognized by the Thai Industrial Standards Institute (TISI) for meeting international local and international recognition standards for excellence.




