{
  "summary": "HS code 2843.90 covers other compounds; amalgams. It sits in heading 28.43 (colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals) 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 28.43 are classified under 2843.10 (colloidal precious metals), 2843.21 (silver compounds, silver nitrate), 2843.29 (silver compounds, other) or 2843.30 (gold compounds). National tariff lines under 2843.90 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": "2843.90",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Other compounds; amalgams",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "28.43: Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/2843"
    },
    {
      "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/284390"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 2843.90 cover?",
      "answer": "HS code 2843.90 covers other compounds; amalgams."
    },
    {
      "question": "Which heading and chapter is HS code 2843.90 in?",
      "answer": "HS code 2843.90 is in heading 28.43 (colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals) 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 28.43 classified when 2843.90 doesn’t fit?",
      "answer": "Other goods of heading 28.43 are classified under 2843.10 (colloidal precious metals), 2843.21 (silver compounds, silver nitrate), 2843.29 (silver compounds, other) or 2843.30 (gold compounds)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 2843.90?",
      "answer": "National tariff lines under 2843.90 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 2843.90 covers other compounds; amalgams.",
        "The legal text of the subheading is “Other compounds; amalgams”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 28.43 are classified under 2843.10 (colloidal precious metals), 2843.21 (silver compounds, silver nitrate), 2843.29 (silver compounds, other) or 2843.30 (gold compounds)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "2843.90 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2843, are heading 28.43; 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 2843.90 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": "2843",
      "description": "Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals"
    },
    "subheading": {
      "code": "284390",
      "description": "Other compounds; amalgams",
      "levels": [
        "Other compounds; amalgams"
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      "english": null,
      "keywords": []
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        "code": "284310",
        "description": "Colloidal precious metals"
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      {
        "code": "284321",
        "description": "Silver compounds: Silver nitrate"
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      {
        "code": "284329",
        "description": "Silver compounds: Other"
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      {
        "code": "284330",
        "description": "Gold compounds"
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      "indexable": true
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      "description": "Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds",
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        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 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",
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  "code": "284390",
  "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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