ChinaSat 9A, originally developed by Sino Satellite Communications Co., Ltd. and named SinoSat 4, was a replacement for SinoSat 2, which experienced a post-launch malfunction. Its launch was originally scheduled for late 2008 but was later postponed. In 2010, the satellite was handed over to China Satcom and renamed ChinaSat 9A. Its launch was also further delayed.