Yiwu, in central Zhejiang, is a major domestic and international trading center of commodities in the country. Over 6,000 merchants from more than 100 countries and regions now work in Yiwu. Some have bought houses and cars there. Some live in rented apartments. Local people call communities where foreigners live together UN communities. Yiwu, in central Zhejiang, is a major domestic and international trading center of commodities in the country. Over 6,000 merchants from more than 100 countries and regions now work in Yiwu. Some have bought houses and cars there. Some live in rented apartments. Local people call communities where foreigners live together UN communities.