Technical Grade P4S3 Flakes from China
Technical grade phosphorus sesquisulfide (P4S3) in flake form serves as a key intermediate in pesticide and lubricant additive production. Classified under HTS 2813.90.50.00 as 'other' commercial phosphorus trisulfide, a nonmetal sulfide excluded from organic chapters. It is highly flammable and requires inert atmosphere storage.
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
• Declare exact CAS# 1314-85-2 and batch purity analysis; use nitrogen-purged containers to prevent autoignition; watch for reclassification if moisture content exceeds 0.5% suggesting preparation status