Mr. Sim Bunthoeun is the 35 years of professional working experiences in a multi-cultural experience switching from Medical Doctor to Natural Resource Management. From June 2019 to present, he is holding a position of Executive Director of NTFP-EP in Cambodia. Engaging with vocational training, he used to be a National Cluster Coordinator for (TVET/MoLVT), along with his career on renewable energy development starting from 2013 to 2018 he used to be a County Director of (GERES), and holding a position of Program Coordinator for the Learning Institute for 2005 to 2013. From 2001 to 2005, he was a Fisheries Advocacy Office for Oxfam America Southeast Asea Regional Office; with a community development, he was working with Leuceana Communication Japonesia is the Japanese Organization, he was holding a position of General Project Manager from 1994 to 2001 and in a very beginning of his career was with American Red Crose/International Red Crose (ARC/IRC) from 1989 to 1992 was holding a position of head nurse on Tuberculosis Program in Thail-Cambodia Border.