On 19 December 2009 in Khemarin Palace, H.M. the King welcomed a Japanese couple Mr. and Mrs. Aoyamakaoru. Mr. and Mrs. Aoyamakaoru conduct humanitarian work, mainly in education field in Cambodia in collaboration with the Japanese International Club for Peace. The couple presented gifts to HM the King, and a financial contribution for the King’s humanitarian action 10,000 USD and 5 tons of rice.