Thorium Lantern Mantle Residue from China
Waste residues from manufacturing gas lantern mantles impregnated with thorium nitrate, retaining thorium-232 daughters. Fits 2844.44.00.00 per radioactive residues definition.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Often exempt under low activity but declare fully; historical import records aid classification; incineration residues may shift categories