Gold-Coated Synthetic Diamond Powder for Electronics from China
Ultra-fine synthetic diamond powder coated with gold, with 90%+ passing a 0.5 mm sieve, used for EMI shielding in microelectronics. The gold coating is a minor constituent and does not change its classification as synthetic diamond powder. It falls under Chapter 71 as dust or powder of precious or semi-precious stones.
Duty Rate — China → Canada
0%
Import Tips
• Verify the gold content is below 2% by weight to avoid classification as precious metal alloy
• Keep records of the coating process and composition for CBSA verification
• Ensure the powder meets the 0.5 mm sieve test for powder form