Cross-Linked Potato Starch for Drilling Fluids from Canada
Chemically cross-linked potato starch for oilfield drilling mud viscosifiers, HTS 3505.10.0015. High temperature stability. Industrial oil/gas application.
Duty Rate — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• API specifications documentation for oilfield acceptance
• Hazard class as non-DG but dusty irritant
• End-use declaration prevents chem prep confusion