大兴区
Yizhuang () is a town of Daxing District, in the southeast suburbs of Beijing, located just outside the 5th Ring Road. Beijing Economic-Technological Development Area (BDA), the biggest economic and technical area is located here. There are a lot of high-tech research centers and joint ventures. In the end of 2005, the Beijing government resolved to make Yizhuang an important satellite town in the next 10 years. , it had 1 residential community () and 12 villages under its administration.