- B.S. (Honour) in Pharmacy, 1974, Mahidol University, Thailand

- Ph.D. Phytochemistry, 1982, University of Queensland, Australia

1989-1990 : A consultant to PCB Co.Ltd. Bangkok Thailand.

2007 : A short term consultantcy to LTS International for Bhutan Medicinal Plants Project Phase II, Bhutan.

2008 : A short term consultantcy to LTS International for Bhutan Medicinal Plants Project Phase II, Bhutan.

2009 : Demonstration on Herbal soap preparation in Health Expo 2009, organized by Ministry of Public Health at Challenger Hall, Nonthaburi.

2009 : A short term consultantcy on Soap Project to BioBhutan, Bhutan.

2009 - present : Chairman of the SPA manager training program organizing Committee, Faculty of Pharmacy, Mahidol University, in Collaboration with Ministry of Public Health.

2011 - present : Consultant of Thai Herbal Manufacturer Association.