High Viscosity Bunker Fuel (Biodiesel) from China
Blended bunker fuel exceeding 125 SUS at 37.8°C, API under 25°, with biodiesel where petroleum oils form >70% basic constituents. Classified under HTS 2710.20.0520 for heavy residual fuels in shipping. Essential for slow-speed diesel engines.
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
• Use certified viscometers for 37.8°C testing; include density at 15°C on COA
• Pitfall: Temperature conversion errors in Saybolt readings cause misclassification