You may contact us in several ways.

By mail:
Customer Service Department:

CHS International Research LTD
927 N. Main Street
Orange, CA 92867
USA

By phone:
(310)-800-6668

By fax:
(714)-997-1956

By: e-mail

E-mail is the most convenient way to communicate with us.  If you did not hear from us, try send again or send us fax at: 714-997-19563