Best Chemicals (Hong Kong) Co., Limited
Tel: +86-13807410244
Email: John.Jiang@promisingchem.com
Renern Technology Development Co., Ltd.
Tel: +86-13807410244
Email: John.Jiang@promisingchem.com
Zinc sulfate domestic sales
Tel: +86-13637337281
Email: jacksong@promisingchem.com

Promising Chemicals Co., Ltd.
Tel: +86-731-85328848
Email: sales@promisingchem.com
           John.Jiang@promisingchem.com
Promising Minerals Co., Ltd.
Tel: +86-731-85328848
Email: sales3@promisingchem.com

Better Chemicals (Hong Kong) Co.,LTD
Mob: +86-13920232355
Email: mavis@promisingchem.com
PLMineral Liaison Office in Canada
Contact: Ms. Jerlyn
Tel: +86-604-636-4698
Email: sales@promisingchem.com