Licensed by the Thai Ministry of Education
DSS International language Services Co., Ltd. is the operating company of Study Thai Chiang Mai. It is registered with the Thai Ministry of Education. Registration number ช.ม.๐๑-๐๑๓/๒๕๔๙ (C.N.01-013/2549)

Certified ISO 9001:2008 by Bureau Veritas

DSS International Language Services Co., Ltd. achieved ISO 9001:2008 certification in 2009. 162 member countries recognize this certification.

* Certification number: TH 09000391
* Verify at +662 670 4800, inside Thailand 02 670 4800.

ISO certification was established through Bureau Veritas, an accredited registrar and auditor that performs assessments of management systems against requirements of national and international standards for quality.

Accredited by the United Kingdom Accreditation Service
ISO Certification by Bureau Veritas is accredited by the United Kingdom Accreditation Service UKAS, the sole national accreditation body recognized by the UK government to assess organizations that provide certification services.

International Recognition

The Thai Industrial Standards Institute ( TISI ) is an office of the Thai Ministry of Industry. One of the objectives of the TISI is to monitor the quality of Thai products and services and to promote companies that meet international governmental-level standards such as ISO 9001:2008 compliance. DSS International Language Services Co., Ltd. is the only language-training company recognized by the TISI as meeting an ISO international standard.