Modified Corn Starch for Drilling Fluids
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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +20.0% | 20% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +60.0% | 60% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +12.5% | 12.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If prepared drilling fluid additives
Complex chemical preparations for oilfield use in 3824.
If oil-based drilling compounds
Petroleum-based fluids classified by oil content.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include MSDS and OSHA compliance docs
• Declare as industrial chemical, not food
• Temperature/shear stability specs required
Related Products under HTS 3505.10.00.40
Corn-Derived Pregelatinized Starch
Pregelatinized starch derived from corn (maize) is a modified starch that has been cooked and dried to allow instant dispersion in cold water. It falls under HTS 3505.10.0040 as a dextrin or other modified starch specifically derived from corn starch, used in food and industrial applications for thickening.
Corn Starch Octenyl Succinate (OSA Starch)
OSA-modified corn starch is an esterified starch derived from corn, used as an emulsifier in food beverages and sauces. Classified under HTS 3505.10.0040 for its corn origin and chemical modification as an esterified starch.
Corn-Based Dextrin Powder
Dextrin powder from corn starch hydrolysis has low reducing sugar content (<10% DE), used in adhesives and paper sizing. It qualifies for HTS 3505.10.0040 as corn-derived dextrin per chapter definition.
Corn Starch Acetate
Acetylated corn starch, an esterified form used in biodegradable plastics and coatings. HTS 3505.10.0040 covers this corn-derived esterified modified starch.
Pregelatinized Corn Starch for Instant Pudding
Food-grade pregelatinized corn starch designed for instant puddings and desserts, disperses without cooking. Classified HTS 3505.10.0040 as corn-derived pregelatinized modified starch.
Corn Dextrin for Paper Sizing
Low-viscosity corn dextrin used in surface sizing of paper for improved print quality. HTS 3505.10.0040 for corn-derived dextrins.