Yángpǔ Economic Development Zone (simplified Chinese: 洋浦经济开发区; traditional Chinese: 洋浦經濟開發區; pinyin: Yángpǔ Jīngjì Kāifā Qū) is an area of the Yangpu Peninsula, Hainan province, China. This zone, covering 31 km2 (12 sq mi), contains a port, oil refinery, petroleum commercial reserve base, power station, and the town of . The area, Hainan's largest economic zone, is located on the northwestern coast of the island, about 140 km (87 mi) west of Haikou, the provincial capital. It is the first development zone approved for lease to foreign investors by the Chinese government.