Need to make a payment?

For the correct payment address, please select your payment option below. For any questions or concerns, you can email the Accounting Department directly at

Domestic US Payments

Voice or Fax: (919) 246-9097

P.O. Box 14461
Research Triangle Park, North Carolina 27709

International Payments

Wire Transfer or Bank Letter of Credit

Voice or Fax: (919) 246-9097

Contact Vice President of Accounting for Details

Payments by Courier

(800) 672-8536

3005 Carrington Mill Blvd., Suite 480
Morrisville, North Carolina 27560

Chemtek will be Closed 1/17/18 due to inclement weather. Learn More