Professor, University of Hawaii, United States
Branch Director, Fengshan Tropical Horticultural Experiment Branch, Taiwan
associate professor of Cavite State University, Philippines of Cavite State University, Philippines
President & CEO, Creative House Corporation, Japan
Consultant, Crop Production and Quality Standards, New Zealand
Director, Agricultural Development and Commercialization Department, MI, Thailand
Deputy Director, Department of Horticulture and Subsidiary Crop General Directorate of Agriculture Ministry of Agriculture Forestry and Fisheries, Cambodia
principal scientist of ICAR-Indian Institute of Horticultural Research, India
retired professor of Khon Kaen University, Thailand