Jiuquan Satellite Launch Center (JSLC; Chinese: 酒泉卫星发射中心; pinyin: Jiǔquán Wèixīng Fāshè Zhōngxīn also known as Shuangchengzi Missile Test Center; Launch Complex B2; formally Northwest Comprehensive Missile Testing Facility (西北综合导弹试验基地); Base 20; 63600 Unit) is a Chinese space vehicle launch facility (spaceport) located between the Ejin, Alxa, Inner Mongolia and Hangtian Town, Jinta County, Jiuquan, Gansu Province. It is part of the Dongfeng Aerospace City (Base 10). Because 95% of JSLC located in Jinta County, Jiuquan, the launch center is named after Jiuquan. The launch center straddles both sides of the Ruo Shui river.