KUNMING, June 15 (Xinhua) -- A total of 266 contracts were signed Friday at the Fifth China-South Asia Expo being held in Kunming, capital of southwest China's Yunnan Province.

Deals were concluded in sectors of green energy, green food and tourism, according to the provincial bureau of investment.

Contractual values of 104 projects exceeded 1 billion yuan (156 million U.S. dollars) each, including a tourist resort construction project in Kunming, with its signed investment value up to 43 billion yuan.

International contracts were also signed, involving parties from Germany, Japan and the Netherlands, among other countries and regions.

More than 3,800 companies from 87 countries and regions are attending the week-long exposition, with over 40 percent of enterprises from overseas.

Yunnan is a border province in southwest China and a gateway to Southeast Asia and South Asia. As the Belt and Road Initiative progresses, Yunnan is developing itself into a frontier in China's new round of opening up, according to the expo organizer.