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2804.40.00.00/High-Purity Research Oxygen-18 Isotope/Mexico

High-Purity Research Oxygen-18 Isotope from Mexico

Enriched oxygen-18 stable isotope gas (>97% purity) for PET imaging tracers and metabolic research. Still classified under HTS 2804.40.00.00 as oxygen, since stable isotopes of nonmetals remain in Chapter 28 unless radioactive.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Include enrichment ratio certificates from supplier

• Comply with stable isotope import regs under NRC if research-bound

• Avoid misdeclaration as radioactive material

High-Purity Research Oxygen-18 Isotope from Mexico — Import Duty Rate | HTS 2804.40.00.00