Shenyang Aircraft Corporation (SAC) or Shenyang Aerospace Corporation is a Chinese civilian and military aircraft manufacturer located in Shenyang, Liaoning, a subsidiary of the state-owned aircraft manufacturer AVIC. Founded in 1951 as the classified 112 Factory, it is the oldest aircraft manufacturer in the People's Republic of China.Many aircraft manufacturers in China such as Chengdu Aircraft Industry Group or Guizhou Aircraft Industry Co. were founded with help from Shenyang. The company mainly focuses on designing and manufacturing civilian and military aircraft, as well as their related components including jet engines. It is also involved in the development of UAVs and drones.