At the fifth China International Import Expo (CIIE), which kicked off last week, US enterprises continue to be a large presence, longing for further investment and cooperation in the Chinese market. Among exhibitors from 145 countries, regions and international organizations, nearly 200 US companies are attending this year's CIIE, US-China Business Council President Craig Allen told Xinhua. American companies are pleased with the results of the participation and want to grow with the expo -- the world's first import-themed national-level expo, Allen said.