No. 6 Residual Fuel Oil from China
No. 6 residual fuel oil is the heaviest fraction from crude distillation, used in cement kilns and steam generators, with low API gravity under 25 degrees indicating high density. HTS 2710.19.06 covers this as a non-crude petroleum residual fuel exceeding 70% oil content.
Duty Rate — China → United States
25%
Rate breakdown
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)
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
• Pre-clear with CBP via ACE entry summary including flash point (>60°C) to classify as fuel, not dangerous goods
• Avoid blending errors; ensure no biodiesel addition to stay in 2710.19.06 rather than 2710.19.20
• Document chain of custody from refinery to ensure not classified as waste oil if recycled content exceeds thresholds