High-Swelling Bentonite for Drilling from Mexico
Premium Wyoming sodium bentonite with high swelling capacity, supplied in bulk for preparing water-based drilling fluids in oilfield operations. HTS 2508.10.00.00 covers this unexpanded, raw bentonite clay explicitly in the clays subheading.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include API specifications (e.g
• API 13A) certification to prove drilling-grade purity and avoid reclassification
• Ship in bulk super-sacks rather than retail bags to maintain raw material status and lower scrutiny
• Watch for moisture content declarations; excessive drying could imply calcining, potentially affecting duty but not heading