Import Duty for Synthetic Rubber And Factice Derived From Oils In Primary Forms Or In Plates Sheets Or Strip Mixtures Of Any Product Of Heading 4001 With Any Product Of This Heading In Primary Forms Or In Plates Sheets Or Strip Containing Over 50 Percent Styrene By Weight Of The Dry Polymer

Under Chapter 40 (Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip), the heading Latex contains this specific code for Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip: > Other > Containing over 50 percent styrene by weight of the dry polymer.

Calculation involves the ad valorem rate plus fees like MPF. For 4002.19.0020, check if your country of origin qualifies for special treatment here.