- 1987 St. Carlos group first began as “Suthipron Clinic” in Bangkok for both inpatient and weight loss patients.
- 1988 “Pahdipat Poly Clinic” was established in Bangkok for both inpatient and weight loss consultation.
- 1989 “Sutjarit Poly Clinic” was established in Bangkok for both inpatient and weight loss consultation.
- 1993 Bangkok Mediclub Center was established in Bangkok.
- 1995 Krungsiam Medical Center & Medical Spa were established and located in the suburbs of Bangkok,Phatumtanee.
- 1997 St. Carlos Laboratory Co., Ltd was established for science research and production of products for both local and international markets.
- 1998 St Carlos Phama International Company was established in Philippines as weight loss production center for distribution worldwide.