{
  "summary": "HS code 2816.40 covers oxides, hydroxides and peroxides, of strontium or barium. It sits in heading 28.16 (hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium) 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 28.16 are classified under 2816.10 (hydroxide or peroxide of magnesium). National tariff lines under 2816.40 are live on border.bot for the United States (2 lines, also used by 1 other country).",
  "updatedAt": "2026-10-11",
  "facts": [
    {
      "label": "HS code",
      "value": "2816.40",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Oxides, hydroxides and peroxides, of strontium or barium",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "28.16: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/2816"
    },
    {
      "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 2 lines",
      "source": null,
      "url": "https://border.bot/countries/united-states/hs-codes/281640"
    }
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  "faq": [
    {
      "question": "What does HS code 2816.40 cover?",
      "answer": "HS code 2816.40 covers oxides, hydroxides and peroxides, of strontium or barium."
    },
    {
      "question": "Which heading and chapter is HS code 2816.40 in?",
      "answer": "HS code 2816.40 is in heading 28.16 (hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium) 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 28.16 classified when 2816.40 doesn’t fit?",
      "answer": "Other goods of heading 28.16 are classified under 2816.10 (hydroxide or peroxide of magnesium)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 2816.40?",
      "answer": "National tariff lines under 2816.40 are live on border.bot for the United States (2 lines, also used by 1 other country)."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 2816.40 covers oxides, hydroxides and peroxides, of strontium or barium.",
        "The legal text of the subheading is “Oxides, hydroxides and peroxides, of strontium or barium”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 28.16 are classified under 2816.10 (hydroxide or peroxide of magnesium)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "2816.40 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2816, are heading 28.16; the last two, 40, 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 2816.40 are live on border.bot for the United States (2 lines, 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"
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    "heading": {
      "code": "2816",
      "description": "Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium"
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      "code": "281640",
      "description": "Oxides, hydroxides and peroxides, of strontium or barium",
      "levels": [
        "Oxides, hydroxides and peroxides, of strontium or barium"
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      "keywords": []
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        "code": "281610",
        "description": "Hydroxide and peroxide of magnesium"
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        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 2,
        "members": 1
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        "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": "281640",
  "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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