Modified Corn Starch for Drilling Fluids from Japan
High-stability modified corn starch used in oil drilling muds for viscosity control. Falls under HTS 3505.10.0040 as corn-derived modified starch for industrial use.
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
• Include MSDS and OSHA compliance docs
• Declare as industrial chemical, not food
• Temperature/shear stability specs required