Synthetic Diamond Powder Coated with Silver from Mexico
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 — Mexico → United States
10%
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
• 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