Sodium Thiosulfate for Photographic Fixing from Mexico
High-purity sodium thiosulfate designed for use in photographic developers as a hypo fixer to dissolve silver halides. It is classified under HTS 2832.30.10.00 because it is chemically defined sodium thiosulfate, meeting Chapter 28 notes for inorganic sulfur compounds.
Duty Rate — Mexico → United States
11.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include end-use statement specifying photographic grade to support classification and any quota applicability
• Ensure EP1 (EPA) certification if containing reportable chemicals; test for heavy metals to meet purity standards
• Ship in moisture-proof bags; exposure to air can form hydrates, risking reclassification