Distinguished guests cut the ribbon at opening ceremony at Clean Energy Expo China & Wind Power Asia Conference which opened on Wednesday in Beijing. The 3-day expo attracted more than 400 companies from 22 countries. It displayed cutting-edge technologies in the clean energy field and offered a trade platform for exhibitors. [CnDG by Jiao Meng]

 A sand table demonstration of a wind power station at the China Longyuan Power Group Corporation Limited booth at Clean Energy Expo China & Wind Power Asia Conference which opened Wednesday in Beijing. The 3-day expo attracted more than 400 companies from 22 countries. It displayed cutting-edge technologies in clean energy field and offered a trade platform for exhibitors. [CnDG by Jiao Meng]