Beijing Economic-Technological Development Area

Beijing Economic-Technological Development Area (BDA) () or Yizhuang Development Area () is a state-level economic and technological development zone in Beijing, China. The area is developed by Beijing ETOWN, an economic development and investment initiative of the Beijing municipal government.
BDA is located in Yizhuang, the southeast suburb of Beijing, with the Jingjintang Expressway nearby on its east, with the Beijing–Tianjin Intercity Rail and the Fifth Ring Road in the north and the Sixth Ring Road in the south. The pillar industries in the zone include pharmaceuticals, information technology, mechanic and electronic products and new materials.