Ukraine's artists perform during a ceremony marking the National Pavilion Day of Ukraine at the 2010 World Expo in Shanghai, east China, Aug. 24, 2010. [Xinhua]

Ukraine's Deputy Economy Minister Valeriy Piatnytsky addresses during a ceremony marking the National Pavilion Day of Ukraine at the 2010 World Expo in Shanghai, east China, Aug. 24, 2010. [Xinhua]