... : white crystal Changzhou Sunlight Pharmaceutical Co., Ltd. (originally Changzhou Sunlight Pharmaceutical Raw Material Co., Ltd. and Changzhou Sunlight Fine Chemcial Co., Ltd.) is located in Benniu Town, Changzhou City. The ... , contracts and keep promise enterprise of Jiangsu Province, Changzhou civilization unit and Changzhou environmental friendly unit.The company was established in 1990 ...