Arsenic Sulfide Glass Chunks from China
Chunks of arsenic sulfide-based glass (As2S3) used for molding into infrared lenses and windows. While chemically defined as arsenic trisulfide, the physical form as glass chunks may be considered a manufactured article rather than a basic chemical, but as a sulfide of a non-metal it falls under tariff item 2813.90.00.
Duty Rate — China → Canada
0%
Import Tips
• Clarify the end-use (e.g
• optical components) to CBSA to avoid misclassification
• Ensure the product is not considered an optical element under heading 90.01, which would exclude it from Chapter 28
• Provide documentation on the manufacturing process