Transformer Mineral Insulating Oil from China
A highly refined mineral oil used in electrical transformers for insulation and cooling, consisting of mixtures of hydrocarbons with not over 50% of any single compound by weight. It falls under HTS 2710.19.45.45 as an insulating or transformer oil derived from petroleum, meeting the criteria for mixtures not elsewhere specified.
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
• Verify the oil's flash point and dielectric strength via lab testing to confirm classification as insulating oil and avoid reclassification
• Provide manufacturer's specification sheets showing <50% single hydrocarbon and >70% petroleum content during customs entry
• Check for environmental regulations on import; obtain EPA approvals if required for dielectric fluids