{
  "summary": "The United States tariff splits HS 2853.90 (phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals) into 4 national lines: 2853.90.10.00 (of copper (phosphor copper), containing more than 15 percent by weight of phosphorous), 2853.90.50.00 (of other metals or nonmetals), 2853.90.90.10 (gallium arsenide wafers, undoped) and 2853.90.90.90 (other). The general (MFN) duty differs by line: 2.6% on 2853.90.10.00, free on 2853.90.50.00, 2.8% on 2853.90.90.10 and 2.8% on 2853.90.90.90.",
  "updatedAt": "2026-10-09",
  "facts": [
    {
      "label": "HS subheading",
      "value": "2853.90",
      "source": null,
      "url": "https://border.bot/hs-codes/285390"
    },
    {
      "label": "National lines",
      "value": "4",
      "source": null
    },
    {
      "label": "Tariff",
      "value": "United States",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false",
      "url": "https://border.bot/countries/united-states"
    },
    {
      "label": "Chapter",
      "value": "28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes",
      "source": null
    }
  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 2853.90?",
      "answer": "The United States tariff splits HS 2853.90 (phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals) into 4 national lines: 2853.90.10.00 (of copper (phosphor copper), containing more than 15 percent by weight of phosphorous), 2853.90.50.00 (of other metals or nonmetals), 2853.90.90.10 (gallium arsenide wafers, undoped) and 2853.90.90.90 (other)."
    },
    {
      "question": "What is the duty on HS 2853.90 in the United States?",
      "answer": "The general (MFN) duty differs by line: 2.6% on 2853.90.10.00, free on 2853.90.50.00, 2.8% on 2853.90.90.10 and 2.8% on 2853.90.90.90."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 2853.90",
      "text": [
        "The United States tariff splits HS 2853.90 (phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals) into 4 national lines: 2853.90.10.00 (of copper (phosphor copper), containing more than 15 percent by weight of phosphorous), 2853.90.50.00 (of other metals or nonmetals), 2853.90.90.10 (gallium arsenide wafers, undoped) and 2853.90.90.90 (other).",
        "The general (MFN) duty differs by line: 2.6% on 2853.90.10.00, free on 2853.90.50.00, 2.8% on 2853.90.90.10 and 2.8% on 2853.90.90.90."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 2853.90 yet."
      ]
    },
    {
      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "This page was last updated on 9 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": "country-subheading",
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      "code": "US",
      "name": "United States",
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      "name": "United States",
      "slug": "united-states"
    },
    "borrowed": false,
    "localTaxes": [],
    "localDeminimis": [],
    "ratesLive": true,
    "provenance": [
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        "country": "US",
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        "liveAt": "2026-10-09T21:15:50.043Z",
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        "liveAt": "2026-10-09T21:15:36.287Z",
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "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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      "code": "2853",
      "description": "Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals"
    },
    "subheading": {
      "code": "285390",
      "description": "Other"
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      {
        "code": "2853901000",
        "description": "Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous",
        "levels": [
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          "Phosphides, whether or not chemically defined, excluding ferrophosphorous",
          "Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous"
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        "keywords": [],
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          "dutyText": "2.6%",
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              {
                "code": "BH",
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              {
                "code": "CL",
                "label": "United States-Chile Free Trade Agreement"
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              {
                "code": "CO",
                "label": "United States-Colombia Trade Promotion Agreement Implementation Act"
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              {
                "code": "D",
                "label": "African Growth and Opportunity Act"
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              {
                "code": "E",
                "label": "Caribbean Basin Economic Recovery Act"
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              {
                "code": "IL",
                "label": "United States-Israel Free Trade Area"
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              {
                "code": "JO",
                "label": "United States-Jordan Free Trade Area Implementation Act"
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              {
                "code": "KR",
                "label": "United States-Korea Free Trade Agreement Implementation Act"
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              {
                "code": "MA",
                "label": "United States-Morocco Free Trade Agreement Implementation Act"
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              {
                "code": "OM",
                "label": "United States-Oman Free Trade Agreement Implementation Act"
              },
              {
                "code": "P",
                "label": "Dominican Republic-Central America-United States Free Trade Agreement"
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              {
                "code": "PA",
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              {
                "code": "PE",
                "label": "United States-Peru Trade Promotion Agreement Implementation Act"
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              {
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              {
                "code": "SG",
                "label": "United States-Singapore Free Trade Agreement"
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        "code": "2853905000",
        "description": "Of other metals or nonmetals",
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      {
        "code": "2853909010",
        "description": "Gallium arsenide wafers, undoped",
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          "Other",
          "Gallium arsenide wafers, undoped"
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        "keywords": [
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        "lang": "en",
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          "code": "28539090",
          "dutyText": "2.8%",
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              {
                "code": "AU",
                "label": "United States-Australia Free Trade Agreement"
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              {
                "code": "BH",
                "label": "United States-Bahrain Free Trade Agreement Implementation Act"
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              {
                "code": "CL",
                "label": "United States-Chile Free Trade Agreement"
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                "code": "CO",
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              {
                "code": "D",
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                "code": "E",
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                "code": "IL",
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              {
                "code": "JO",
                "label": "United States-Jordan Free Trade Area Implementation Act"
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              {
                "code": "KR",
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