Mixed Rare-Earth Metal (Didymium) Ingots from China
Didymium ingots, a mixture of neodymium and praseodymium rare-earth metals, used in specialty glass coloring and welding lenses. HTS 2805.30.00 explicitly includes intermixed rare-earth metals in elemental form. Composition typically 75% Nd/25% Pr.
Duty Rate — China → United States
5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Exact mixture ratios via ICP-MS analysis required; customs verifies against heading 'intermixed'
• Avoid moisture exposure; weight discrepancies from hydrolysis are frequent claims issues
• Anti-dumping duties possible; confirm country of melt and origin rules