Iridium Sponge from China
Iridium sponge is a porous, semi-manufactured form of iridium metal produced by reducing iridium compounds, used in the manufacture of high-temperature alloys and spark plugs. It falls under HTS 7110.49.00 as 'other' iridium in semi-manufactured form, distinct from unwrought bars or powder. This classification applies per Chapter 71 notes treating iridium as platinum group metals.
Duty Rate — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Verify metal purity via assay certificate to confirm iridium predominance per note 5 classification rules
• Provide origin documentation proving non-CITES restricted sourcing for precious metals
• Avoid misclassification as scrap (7112) by ensuring sponge is semi-manufactured, not waste