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Helium-3 Cryogenic Fluid from Mexico

Liquefied Helium-3 used in dilution refrigerators to achieve millikelvin temperatures. This product is specifically the He-3 isotope under HTS 2845.40.00.00, meeting the definition of isotopes with modified composition. Essential for low-temperature physics experiments.

Duty Rate — Mexico → United States

10%

Rate breakdown

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

Import Tips

Use cryogenic-rated containers with safety data sheets; declare exact isotopic purity on commercial invoice; anticipate customs holds for verification of non-radioactive status