HPHT Natural Diamond Lapping Powder from Japan
High-pressure high-temperature processed natural diamond powder refined to 80 mesh fineness for optical lapping. HTS 7105.10.00.11 applies to this natural diamond dust meeting powder form criteria. Used in finishing precision optics, semiconductors, and hardened surfaces.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• HPHT enhancement doesn't change natural classification; retain processing certificates showing natural origin
• Use ESD-safe packaging for electronics industry shipments to maintain powder integrity