Cationic Starch Retention Aid from Canada
Modified cationic starch solution used in paper mills to improve fiber and filler retention during the papermaking process. Classified under HTS 3809.92.5050 as a paper industry finishing preparation that enhances sheet formation and reduces white water solids. It improves paper strength and machine efficiency.
Duty Rate — Canada → United States
16%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Test for starch modification type (cationic degree) to confirm classification; provide mill trial data showing paper end-use; watch for reclassification as Chapter 35 modified starches if food-grade