管委会 (short for
管理委员会) is the governing body of special-purpose zones in China — development zones (
开发区管委会), high-tech parks (
高新区管委会), and state-level "new districts" (
新区, e.g. Pudong New Area
浦东新区, Xiong'an
雄安新区). It's a government agency with semi-municipal powers, usually directly under the city or provincial government rather than a full district-level
政府.