Cross-Linked Potato Starch for Drilling Fluids from Japan
Chemically cross-linked potato starch for oilfield drilling mud viscosifiers, HTS 3505.10.0015. High temperature stability. Industrial oil/gas application.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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