Polyphthalamide (PPA) Powder from China
Polyphthalamide (PPA) in powder form, a semi-aromatic polyamide not specifically named elsewhere, qualifies under 3908.90.70.00 for other polyamides in primary forms. High heat resistance makes it suitable for automotive under-hood parts.
Duty Rate — China → United States
44%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Obtain third-party analysis proving no specific subheading applies (e.g
• not PA-6,6)
• Avoid bulk packaging that suggests compounding; use bags for primary resin identification