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Uranium-235 Enriched Isotope from Mexico

Uranium-235 enriched isotope is a radioactive isotope used primarily in nuclear reactors for fission reactions and in research applications. It falls under HTS 2844.43.00 as a radioactive isotope other than those specified in subheadings 2844.10, 2844.20, or 2844.30, meeting the criteria for elements with artificially modified isotopic composition.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

Import Tips

• Obtain NRC or DOE export/import license prior to shipment; verify specific activity exceeds 74 Bq/g

• Provide detailed radioactivity documentation including decay chains and half-life data

• Use Type B packaging compliant with IAEA SSR-6 for transport; avoid common pitfalls like incomplete shielding specs