Chongqing Jianshe motorcycle company is a public listed company in Hongkong, it is one of the mainstay enterprises belonging to China Ordnance Equipment Industry Group. Since its cooperation with YAMAHA Motor Co., Ltd in early 1980s, more than 13 million sets of motorcycle and 3 million sets of automobile a/c compressors have been manufactured accumulatively. It owns several famous brand names such as "Jianshe", "Jianshe YAMAHA", "Chongqing YAMAHA".