MBS Impact Modifier Powder (Core-Shell Type) from China
Fine powder form of core-shell MBS copolymer where butadiene core is rubber-modified with MMA/styrene shell, meeting 95% comonomer criteria. Classified under the specific MBS subheading 3903.90.1000 in primary forms. Used in extrusion and injection molding for enhanced toughness.
Duty Rate — China → United States
41.5%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Document particle size distribution (typically 0.1-5 microns for powders) to prove primary form status
• Use ISCC PLUS certification for sustainable sourcing claims
• Common issue: dust mitigation labeling required for fine powders