H.E.Prof.Dr.CHHUN Vannak, Owner, CEO and President of IIMC; Founder, Chairman of the Board of Trustees of International Institute for Scientific Research (IISR), with H.E.Ms. Anne Lemaistre, UNESCO Representative in Cambodia, and Head of UNESCO Phnom Penh Office, co-inaugurated UNESCO ROOM, planted a tree together for UNESCO and opened the United Nations Lecture Series: “UNESCO Biosphere Reserve” on 20th December 2018.