Other
Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: > Radioactive elements and isotopes and compounds other than those of subheading 2844.10, 2844.20 or 2844.30; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues: > Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds > Other elements, isotopes and compounds: > Other
Duty Rate (from China)
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2844.43.00.28
Uranium-235 Enriched Isotope
Uranium-235 is a fissile isotope used in nuclear reactors and weapons, classified under HTS 2844.43.0028 as a radioactive isotope other than those in subheadings 2844.10, 2844.20, or 2844.30. It meets the definition of artificially modified isotopic mixtures with specific radioactivity exceeding natural levels.
Plutonium-239 Dioxide Powder
Plutonium-239 dioxide (PuO2) is a fissile compound used in mixed oxide (MOX) nuclear fuel, classified here as a radioactive compound of an element with atomic number >84. It qualifies under note 4(c) for chemically defined compounds of transuranic elements.
Americium-241 Oxide Source Material
Americium-241 oxide (AmO2) serves as a calibration source for detectors and in neutron sources, fitting 2844.43.0028 for compounds of radioactive elements (atomic no. 95). Exceeds 74 Bq/g threshold per Chapter Note 4.
Curium-244 Isotope Alloy
Curium-244 alloyed with carrier metals for research reactor targets, classified as an alloy containing radioactive isotopes under 2844.43.0028 per note 4(d). High specific radioactivity qualifies it for this heading.
Californium-252 Neutron Source
Californium-252 metal encapsulated as portable neutron source for oil well logging and radiography, under 2844.43.0028 as a compound/isotope of element 98. Meets chemically defined criteria of Chapter Notes.
Neptunium-237 Oxide Powder
Neptunium-237 oxide used in research and as burnable poison in reactors, classified as 'other' radioactive compound (element 93) in 2844.43.0028. Excluded from specific subheadings.
Promethium-147 Ceramic Dispersion
Promethium-147 dispersed in ceramic matrix for beta batteries and thickness gauges, under 2844.43.0028 as dispersion containing radioactive isotope (atomic no. 61). Specific activity >74 Bq/g.
Berkelium-249 Metal Target
Berkelium-249 metallic target for superheavy element synthesis, classified as radioactive element compound under 2844.43.0028 (element 97). Pure isotope form qualifies.
Technetium-99m Generator Eluate
Technetium-99m pertechnetate eluate from Mo-99 generators for nuclear medicine, under 2844.43.0028 as radioactive isotope compound (element 43). Chemically defined per Chapter Notes.