Silicon Dioxide (Amorphous Silica) from China
Amorphous silicon dioxide, also known as synthetic silica, is a chemically defined inorganic oxygen compound of the nonmetal silicon. It falls under HTS 2811.29.5000 as 'other inorganic oxygen compounds of nonmetals' excluding specified compounds like carbon oxides. Used as a filler in rubber, plastics, and pharmaceuticals.
Duty Rate — China → United States
38.7%
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)
Import Tips
• Provide Certificate of Analysis (COA) confirming purity and amorphous structure to avoid misclassification as quartz
• Ensure proper labeling as non-hazardous if particle size exceeds respirable limits; comply with TSCA registration
• Verify bulk packaging doesn't trigger 3824 classification for mixtures