Thorium Dioxide Powder from Japan
High-purity thorium dioxide (ThO2), also known as thoria, used in gas mantles and high-temperature ceramics. Classified under HTS 2844.30.10.00 as a thorium oxide compound per Chapter 28 provisions for chemically defined inorganic compounds.
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
• Classify activity level (typically low for ThO2); use UN 2972 for transport if above exempt limits
• Provide certificates of analysis confirming thorium content and purity to meet 'chemically defined' criteria
• Avoid misclassification as ceramic powder (6903); specify chemical compound status in entry docs