Synthetic Diamond Powder Coated with Silver from Canada
Fine synthetic diamond powder where 90% or more passes through a 0.5 mm sieve, coated with a thin layer of silver metal for enhanced thermal conductivity. Classified under HTS 7105.10.0020 due to being synthetic diamond dust/powder explicitly coated with metal. Used primarily in electronics for heat sinks and thermal pastes.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Verify coating composition via spectrometry to confirm 'coated with metal' status and avoid reclassification as uncoated powder under 7105.10.0010
• Provide lab certification proving 90%+ passes 0.5mm sieve and synthetic origin to meet subheading powder definition
• Declare exact metal coating (e.g
• silver) and weight percentage; common pitfall is undervaluing high-conductivity coatings