TNPP Price Increase

Effective February 1, 2018, or as contracts allow, Dover Chemical Corporation is increasing the list and off-list prices for all grades of Doverphos® TNPP (tris nonylphenol phosphite) products by 15%. 

This increase is necessary due to 1) continued increases in raw materials mainly derived from petroleum feedstocks; and 2) sharp increases in freight costs on a global basis due to higher operational costs and low availability. 

 All orders placed for shipment on or after February 1, 2018 will be affected by this increase.

 For more detail or information on this announcement, please contact your Dover Chemical local sales representative.


William M. Fender
Global Business Manager; Polymer Additives
Dover Chemical Corporation
330-407-4500 (mobile)
330-365-3682 (office)

Wendy Finch