Arsenic Sulfide Glass Chunks from Mexico
Chunks of arsenic sulfide-based glass (As2S3) used for molding into infrared lenses and windows. Classified under HTS 2813.90.10.00 as it is chemically defined arsenic sulfide in solid form, meeting Chapter 28 Note 1 criteria before further processing into optical elements. Primarily imported for defense and thermal imaging applications.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Declare exact chemical composition and CAS number (1303-33-9) on commercial invoice to support HTS classification
• Comply with ITAR/EAR export controls if destined for optical/military end-use; obtain end-user certificates
• Use DOT-approved packaging for toxic substances; avoid common pitfall of under-declaring arsenic content leading to penalties