High-Purity Cadmium Sulfide for Semiconductors from Japan
Ultra-high purity (6N) cadmium sulfide crystals or powder for manufacturing II-VI compound semiconductors like CdS photodetectors. Falls under HTS 2830.90.20.00 as chemically defined cadmium sulfide. Not doped or wafer-formed, qualifying for Chapter 28.
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
• Include lot-specific purity certificates; customs may test for semiconductor-grade specs
• Declare end-use as inorganic compound, not electronic component, to prevent shift to Chapter 85
• Comply with Wassenaar Arrangement export controls if high-purity suggests dual-use tech