CHANGCHUN, Sept. 4 (Xinhuanet) -- The three-day Tumen River Area International Investment and Trade Fair ended Wednesday in Yanji City, capital of Yanbian Korean Autonomous Prefecture (YKAP) in northeast China's Jilin Province, with clinched contracts totaling743 million US dollars.

The fair, the third of its kind, attracted a total investment of 1.165 billion US dollars.

Organizers say the fair aims to promote the economic planning and development of the Tumen River region. Over 3,000 businessmen from 15 countries and regions attended the fair.

The prefecture exhibited 265 projects at the fair, which is jointly organized by the Tumen River Secretariat of the United Nations Development Program, the United Nations Industrial Development Organization, the Jilin Provincial Government, the YKAP government and the China International Economic and Technical Exchange Center.