九州云箭（北京）空间科技有限公司
Jiuzhou Yunjian Space Technology Co., Ltd. (JZYJ), also known as China Cloud Arrow, is a Chinese rocket engine design and production startup founded in 2017 and based in Beijing. It specializes in methalox liquid rocket engines, like the Lingyun and Longyun, with capabilities such as multiple starts and variable thrust. The company partners with commercial launch providers in China, such as Linkspace and Rocket Pi, supplying engines for their launch vehicles and contributing to reusable rocket technology.
All verified mentions of this organization in source documents.
Jiuzhou Yunjian tested a combustion chamber for the 10-ton-thrust methalox engine named Lingyun in December.