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)[1] is a Chinese space vehicle launch facility (spaceport) located between the Ejin, Alxa, Inner Mongolia and Hangtian Town, Jinta County, Jiuquan, Gansu Province.[2] 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.[3]