{
  "summary": "The United States tariff splits HS 3818.00 (chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics) into 7 national lines: 3818.00.00.10 (gallium arsenide wafers, doped), 3818.00.00.20 (polycrystalline silicon wafers, doped), 3818.00.00.30 (silicon carbide wafers, doped), 3818.00.00.40 (round (circular) shaped, as described in statistical note 2 to this chapter) and 3 others. Every United States line under 3818.00 is free of general (MFN) duty.",
  "updatedAt": "2026-10-09",
  "facts": [
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      "label": "HS subheading",
      "value": "3818.00",
      "source": null,
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    },
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      "label": "Duty (MFN)",
      "value": "Free",
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  ],
  "faq": [
    {
      "question": "How many national tariff lines does the United States tariff have under HS 3818.00?",
      "answer": "The United States tariff splits HS 3818.00 (chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics) into 7 national lines: 3818.00.00.10 (gallium arsenide wafers, doped), 3818.00.00.20 (polycrystalline silicon wafers, doped), 3818.00.00.30 (silicon carbide wafers, doped), 3818.00.00.40 (round (circular) shaped, as described in statistical note 2 to this chapter) and 3 others."
    },
    {
      "question": "What is the duty on HS 3818.00 in the United States?",
      "answer": "Every United States line under 3818.00 is free of general (MFN) duty."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "United States lines under 3818.00",
      "text": [
        "The United States tariff splits HS 3818.00 (chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics) into 7 national lines: 3818.00.00.10 (gallium arsenide wafers, doped), 3818.00.00.20 (polycrystalline silicon wafers, doped), 3818.00.00.30 (silicon carbide wafers, doped), 3818.00.00.40 (round (circular) shaped, as described in statistical note 2 to this chapter) and 3 others.",
        "Every United States line under 3818.00 is free of general (MFN) duty."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 3818.00 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."
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      "code": "3818",
      "description": "Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics"
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      "code": "381800",
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      "description": "Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902",
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      "description": "Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals",
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