Lithium Perfluorooctane Sulfonate from China
Lithium perfluorooctane sulfonate is the lithium salt of perfluorooctane sulfonic acid (PFOS), a fully fluorinated organic compound with a sulfonate group. It falls under HTS 2904.35.00.00 as one of the 'other salts' of PFOS, distinct from the acid itself or its sulfonyl fluoride, per chapter 29 rules for sulfonated halogenated hydrocarbons.
Duty Rate — China → United States
41.2%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify PFOS content and obtain EPA approvals due to restrictions under TSCA and Stockholm Convention on persistent organic pollutants
• Provide detailed chemical analysis certificates confirming it's a PFOS salt, not the acid or fluoride form
• Avoid misclassification as mixtures; ensure purity meets chapter note (a) for separate chemically defined compounds