Waste Marine Grease from Ship Engine Bearings from China

This is waste grease collected from the bearings of marine diesel engines, containing minor soap thickeners from vegetable fatty acids under 10% by weight. It qualifies under HTS 2710.99.32.00 as a waste of lubricating greases with low fatty acid salt content derived from used marine equipment. The material is a spent lubricant no longer suitable for its original purpose.

Duty Rate — China → United States

13.3%

Rate breakdown

9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Verify fatty acid salt content via lab analysis to confirm ≤10% threshold; obtain waste manifests proving origin as spent grease

Common pitfall: misclassifying as non-waste if still usable