{
  "summary": "HS code 8112.31 covers hafnium, unwrought; waste and scrap; powders. It sits in heading 81.12 (beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap) in chapter 81 (other base metals; cermets; articles thereof). Other goods of heading 81.12 are classified under 8112.12 (beryllium, unwrought; powders), 8112.13 (beryllium, waste and scrap), 8112.19 (beryllium, other), 8112.21 (chromium, unwrought; powders) or 12 others. National tariff lines under 8112.31 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": "8112.31",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Hafnium, unwrought; waste and scrap; powders",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "81.12: Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/8112"
    },
    {
      "label": "Chapter",
      "value": "81: Other base metals; cermets; articles thereof",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/81"
    },
    {
      "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/811231"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 8112.31 cover?",
      "answer": "HS code 8112.31 covers hafnium, unwrought; waste and scrap; powders."
    },
    {
      "question": "Which heading and chapter is HS code 8112.31 in?",
      "answer": "HS code 8112.31 is in heading 81.12 (beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap) in chapter 81 (other base metals; cermets; articles thereof)."
    },
    {
      "question": "Where are goods of heading 81.12 classified when 8112.31 doesn’t fit?",
      "answer": "Other goods of heading 81.12 are classified under 8112.12 (beryllium, unwrought; powders), 8112.13 (beryllium, waste and scrap), 8112.19 (beryllium, other), 8112.21 (chromium, unwrought; powders) or 12 others."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 8112.31?",
      "answer": "National tariff lines under 8112.31 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 8112.31 covers hafnium, unwrought; waste and scrap; powders.",
        "The legal text of the subheading is “Hafnium: Unwrought; waste and scrap; powders”, read under “Hafnium”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 81.12 are classified under 8112.12 (beryllium, unwrought; powders), 8112.13 (beryllium, waste and scrap), 8112.19 (beryllium, other), 8112.21 (chromium, unwrought; powders) or 12 others."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "8112.31 is a six-digit subheading. Its first two digits, 81, are the chapter; the first four, 8112, are heading 81.12; the last two, 31, 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 8112.31 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": "81",
      "description": "Other base metals; cermets; articles thereof"
    },
    "heading": {
      "code": "8112",
      "description": "Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap"
    },
    "subheading": {
      "code": "811231",
      "description": "Hafnium: Unwrought; waste and scrap; powders",
      "levels": [
        "Hafnium",
        "Unwrought; waste and scrap; powders"
      ],
      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "811212",
        "description": "Beryllium: Unwrought; powders"
      },
      {
        "code": "811213",
        "description": "Beryllium: Waste and scrap"
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      {
        "code": "811219",
        "description": "Beryllium: Other"
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      {
        "code": "811221",
        "description": "Chromium: Unwrought; powders"
      },
      {
        "code": "811222",
        "description": "Chromium: Waste and scrap"
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        "code": "811229",
        "description": "Chromium: Other"
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      {
        "code": "811239",
        "description": "Hafnium: Other"
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      {
        "code": "811241",
        "description": "Rhenium: Unwrought; waste and scrap; powders"
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      {
        "code": "811249",
        "description": "Rhenium: Other"
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      {
        "code": "811251",
        "description": "Thallium: Unwrought; powders"
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      {
        "code": "811252",
        "description": "Thallium: Waste and scrap"
      },
      {
        "code": "811259",
        "description": "Thallium: Other"
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      {
        "code": "811261",
        "description": "Cadmium: Waste and scrap"
      },
      {
        "code": "811269",
        "description": "Cadmium: Other"
      },
      {
        "code": "811292",
        "description": "Other: Unwrought; waste and scrap; powders"
      },
      {
        "code": "811299",
        "description": "Other: Other"
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    "related": [],
    "previous": {
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      "description": "Chromium: Other",
      "indexable": true
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      "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": []
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  "code": "811231",
  "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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