Black Silicon Carbide Crude Chunks from Canada
Black crude silicon carbide chunks from Acheson furnace process, irregular shapes with >97% SiC content. Fits HTS 2849.20.10.00 for crude silicon carbides, chemically defined per subheading note via Chapter 28 criteria. Excluded from Chapter 38 if not put up for retail or fire-extinguishers.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include chemical assay reports proving >90% SiC for chemical definition; avoid retail packaging to prevent Chapter 38 shift
• Common issue: contamination claims leading to purity disputes