{
  "summary": "HS code 2518.20 covers calcined or sintered dolomite. It sits in heading 25.18 (dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement). Other goods of heading 25.18 are classified under 2518.10 (dolomite, not calcined or sintered). National tariff lines under 2518.20 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": "2518.20",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Calcined or sintered dolomite",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "25.18: Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/2518"
    },
    {
      "label": "Chapter",
      "value": "25: Salt; sulphur; earths and stone; plastering materials, lime and cement",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/25"
    },
    {
      "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/251820"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 2518.20 cover?",
      "answer": "HS code 2518.20 covers calcined or sintered dolomite."
    },
    {
      "question": "Which heading and chapter is HS code 2518.20 in?",
      "answer": "HS code 2518.20 is in heading 25.18 (dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement)."
    },
    {
      "question": "Where are goods of heading 25.18 classified when 2518.20 doesn’t fit?",
      "answer": "Other goods of heading 25.18 are classified under 2518.10 (dolomite, not calcined or sintered)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 2518.20?",
      "answer": "National tariff lines under 2518.20 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 2518.20 covers calcined or sintered dolomite.",
        "The legal text of the subheading is “Calcined or sintered dolomite”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 25.18 are classified under 2518.10 (dolomite, not calcined or sintered)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "2518.20 is a six-digit subheading. Its first two digits, 25, are the chapter; the first four, 2518, are heading 25.18; the last two, 20, 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 2518.20 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."
      ]
    }
  ],
  "data": {
    "type": "hs-subheading",
    "edition": "HS2022",
    "chapter": {
      "code": "25",
      "description": "Salt; sulphur; earths and stone; plastering materials, lime and cement"
    },
    "heading": {
      "code": "2518",
      "description": "Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape"
    },
    "subheading": {
      "code": "251820",
      "description": "Calcined or sintered dolomite",
      "levels": [
        "Calcined or sintered dolomite"
      ],
      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "251810",
        "description": "Dolomite, not calcined or sintered"
      }
    ],
    "related": [],
    "previous": {
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      "description": "Dolomite, not calcined or sintered",
      "indexable": true
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    "next": {
      "code": "251910",
      "description": "Natural magnesium carbonate (magnesite)",
      "indexable": true
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    "schedules": [
      {
        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 1,
        "members": 1
      }
    ],
    "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",
        "sourceUrls": []
      }
    ],
    "dateModified": "2026-10-11T06:04:17.693Z",
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    "pages": 1,
    "size": 100,
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  "previous": "https://border.bot/hs-codes/251810",
  "next": "https://border.bot/hs-codes/251910",
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    "html": "https://border.bot/hs-codes/251820",
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  "code": "251820",
  "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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}