Hanoi: Director General of the World Trade Organization (WTO) Roberto Azevedo arrived in Vietnam on Friday, the first visit of a WTO chief to the country. "Vietnam is a story of success, in which trade makes great contribution to the development of the country," said Azevedo at a meeting with Vietnamese Prime Minister Nguyen Xuan Phuc in capital Hanoi on Friday. "We want to enhance cooperation with Vietnam in human resource training in integration and international trade," Azevedo said. The WTO chief said that his organization is preparing a development agenda for the coming time while Vietnam will be part of it, reported Vietnamese government's e-Portal, Xinhua news agency reported. Prime Minister Nguyen Xuan Phuc said that his country remains a low-developing country among WTO members, which is in need of further support to increase capacity for more effective participation in multilateral trading system. Vietnam joined the WTO in January 2007.