Lanxess
Perstorp
Chongqing Chuandong Chemical Co. Ltd.
Geo Specialty Chemical Inc.
Zibo Ruibao Chemical Co. Ltd.
American Elements
Henan Botai Chemical Building Material Co. Ltd.
Shandong Baoyuan Chemical Co. Ltd.
Jiangxi Kosin Organic Chemical Co. Ltd
Sidley Chemical Co. Ltd