Industrial Grade Thioglycolic Acid from China
Technical grade thioglycolic acid used in polymer synthesis and metal extraction, specifically classified under HTS 2930.90.4910. Meets Chapter 29 requirements as a separate chemically defined organo-sulfur acid with direct C-S bond.
Duty Rate — China → United States
137.5%
Rate breakdown
9903.04.6095.8%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Include assay certificate showing ≥80% purity to distinguish from mixtures in 3824
• Label as UN 1940 Corrosive Liquid, pH <2; ensure DOT-compliant packaging
• Document end-use to prevent reclassification as hair waving preparation under 3305