2508.10.00.00/High-Swelling Bentonite for Drilling/China

High-Swelling Bentonite for Drilling from China

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 — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

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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