AT an exhibition booth at the fifth China-Arab States Expo, Yang Wanlong attracted a large number of domestic and foreign customers with his two products on display: nutritious Morchella fungi and high-quality activated carbon. The exhibition, which closed yesterday in the city of Yinchuan, capital of Northwest China’s Ningxia Hui Autonomous Region, is the first experience of such an event for Yang, a 27-year-old who runs a cross-border e-commerce company. His booth is in the cross-border e-commerce exhibition area, and he has made the most of the opportunity. Last year, China-Arab trade volume reached nearly US$240 billion, with Arab states’…