Visitors try the "dark tea" from China's Hunan Province during the 5th China-Eurasia Expo in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, Sept. 22, 2016. Starting from Sept. 20, more than 2,000 Chinese and foreign companies, delegates from 57 countries and regions, and six global organizations are participating in the six-day fair held in the regional capital of Urumqi. (Xinhua/Zhao Ge)