Changchai Co. Ltd., Changzho Hongtu Dyeing and Weaving Co. Ltd., Changzhou ChinaSound Electronics Co., Changzhou Dahua Imp. & Exp. (Group) Corp., Changzhou Drying Equipment Co., Ltd., Changzhou Great Pacific Electrical Equipment Co. L, Changzhou Guangming Light Bulb Factory, Changzhou Hongqi Chemical Factory, Changzhou Kanghua Medical Equipment Plant, Changzhou Qingyunge Art Co. Ltd.