{
  "summary": "HS code 2845.90 covers isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined, other than those classified in 2845.10, 2845.20, 2845.30 and 2845.40. It sits in heading 28.45 (isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.45 are classified under 2845.10 (heavy water (deuterium oxide)), 2845.20 (boron enriched in boron-10 and its compounds), 2845.30 (lithium enriched in lithium-6 or its compounds) and 2845.40 (helium-3). National tariff lines under 2845.90 are live on border.bot for the United States (1 line, also used by 1 other country).",
  "updatedAt": "2026-10-11",
  "facts": [
    {
      "label": "HS code",
      "value": "2845.90",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "28.45: Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/2845"
    },
    {
      "label": "Chapter",
      "value": "28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/28"
    },
    {
      "label": "Edition",
      "value": "HS2022",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Duty in the United States",
      "value": "See its 1 line",
      "source": null,
      "url": "https://border.bot/countries/united-states/hs-codes/284590"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 2845.90 cover?",
      "answer": "HS code 2845.90 covers isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined, other than those classified in 2845.10, 2845.20, 2845.30 and 2845.40."
    },
    {
      "question": "Which heading and chapter is HS code 2845.90 in?",
      "answer": "HS code 2845.90 is in heading 28.45 (isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes)."
    },
    {
      "question": "Where are goods of heading 28.45 classified when 2845.90 doesn’t fit?",
      "answer": "Other goods of heading 28.45 are classified under 2845.10 (heavy water (deuterium oxide)), 2845.20 (boron enriched in boron-10 and its compounds), 2845.30 (lithium enriched in lithium-6 or its compounds) and 2845.40 (helium-3)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 2845.90?",
      "answer": "National tariff lines under 2845.90 are live on border.bot for the United States (1 line, also used by 1 other country)."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 2845.90 covers isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined, other than those classified in 2845.10, 2845.20, 2845.30 and 2845.40.",
        "The legal text of the subheading is “Other”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 28.45 are classified under 2845.10 (heavy water (deuterium oxide)), 2845.20 (boron enriched in boron-10 and its compounds), 2845.30 (lithium enriched in lithium-6 or its compounds) and 2845.40 (helium-3)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "2845.90 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2845, are heading 28.45; the last two, 90, identify the subheading within the heading.",
        "Countries add their own digits after these six for their national tariff lines."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "National tariff lines under 2845.90 are live on border.bot for the United States (1 line, also used by 1 other country)."
      ]
    },
    {
      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.",
        "This page was last updated on 11 October 2026.",
        "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling."
      ]
    }
  ],
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    "edition": "HS2022",
    "chapter": {
      "code": "28",
      "description": "Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes"
    },
    "heading": {
      "code": "2845",
      "description": "Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined"
    },
    "subheading": {
      "code": "284590",
      "description": "Other",
      "levels": [
        "Other"
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      "english": null,
      "keywords": []
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    "siblings": [
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        "code": "284510",
        "description": "Heavy water (deuterium oxide)"
      },
      {
        "code": "284520",
        "description": "Boron enriched in boron-10 and its compounds"
      },
      {
        "code": "284530",
        "description": "Lithium enriched in lithium-6 and its compounds"
      },
      {
        "code": "284540",
        "description": "Helium-3"
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    ],
    "related": [],
    "previous": {
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      "description": "Helium-3",
      "indexable": true
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      "description": "Cerium compounds",
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    "schedules": [
      {
        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 1,
        "members": 1
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    ],
    "provenance": [
      {
        "dataset": "GLOBAL:hs",
        "country": "GLOBAL",
        "kind": "hs",
        "seq": 2,
        "version": "mytraddal hs2022.csv (HS 2022)",
        "liveAt": "2026-10-11T06:04:17.693Z",
        "origin": "upload",
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  "next": "https://border.bot/hs-codes/284610",
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  "code": "284590",
  "attribution": "border.bot tariff reference (border.bot), compiled from the official publishers named on each page.",
  "terms": "https://border.bot/legal/terms",
  "notice": "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.",
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