(VOV) -On January 20, Vietnam Ambassador in Lisbon Nguyen Ngoc Son presented his credentials to President Anibal Cavaco Silva. At the meeting, the Vietnamese diplomat extended greetings from Vietnamese leaders and an invitation to visit Vietnam from President Truong Tan Sang. Ambassador Son briefed his host on the socio-economic situation in Vietnam and the bilateral relations. Especially in the year 2015, the two countries are to celebrate 500 years of the first Portugueses coming to Vietnam and the 40th anniversary of diplomatic relations, Son said. President Anibal Cavaco in turn thanked his Vietnamese counterpart Truong Tan Sang for the invitation and hailed Vietnam’s socio-economic development achievements over the years. He said he hopes the relations between Vietnam and Portugal will grow and flourish in the future.