{
  "summary": "HS code 8506.40 covers silver oxide. It sits in heading 85.06 (primary cells and primary batteries) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). Other goods of heading 85.06 are classified under 8506.10 (manganese dioxide), 8506.30 (mercuric oxide), 8506.50 (lithium), 8506.60 (air-zinc) or 2 others. National tariff lines under 8506.40 are live on border.bot for the United States (3 lines, also used by 1 other country).",
  "updatedAt": "2026-10-11",
  "facts": [
    {
      "label": "HS code",
      "value": "8506.40",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Silver oxide",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "85.06: Primary cells and primary batteries",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/8506"
    },
    {
      "label": "Chapter",
      "value": "85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/85"
    },
    {
      "label": "Edition",
      "value": "HS2022",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Duty in the United States",
      "value": "See its 3 lines",
      "source": null,
      "url": "https://border.bot/countries/united-states/hs-codes/850640"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 8506.40 cover?",
      "answer": "HS code 8506.40 covers silver oxide."
    },
    {
      "question": "Which heading and chapter is HS code 8506.40 in?",
      "answer": "HS code 8506.40 is in heading 85.06 (primary cells and primary batteries) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles)."
    },
    {
      "question": "Where are goods of heading 85.06 classified when 8506.40 doesn’t fit?",
      "answer": "Other goods of heading 85.06 are classified under 8506.10 (manganese dioxide), 8506.30 (mercuric oxide), 8506.50 (lithium), 8506.60 (air-zinc) or 2 others."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 8506.40?",
      "answer": "National tariff lines under 8506.40 are live on border.bot for the United States (3 lines, also used by 1 other country)."
    }
  ],
  "sections": [
    {
      "id": "covers",
      "title": "What this code covers",
      "text": [
        "HS code 8506.40 covers silver oxide.",
        "The legal text of the subheading is “Silver oxide”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 85.06 are classified under 8506.10 (manganese dioxide), 8506.30 (mercuric oxide), 8506.50 (lithium), 8506.60 (air-zinc) or 2 others."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "8506.40 is a six-digit subheading. Its first two digits, 85, are the chapter; the first four, 8506, are heading 85.06; 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 8506.40 are live on border.bot for the United States (3 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."
      ]
    }
  ],
  "data": {
    "type": "hs-subheading",
    "edition": "HS2022",
    "chapter": {
      "code": "85",
      "description": "Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles"
    },
    "heading": {
      "code": "8506",
      "description": "Primary cells and primary batteries"
    },
    "subheading": {
      "code": "850640",
      "description": "Silver oxide",
      "levels": [
        "Silver oxide"
      ],
      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "850610",
        "description": "Manganese dioxide"
      },
      {
        "code": "850630",
        "description": "Mercuric oxide"
      },
      {
        "code": "850650",
        "description": "Lithium"
      },
      {
        "code": "850660",
        "description": "Air-zinc"
      },
      {
        "code": "850680",
        "description": "Other primary cells and primary batteries"
      },
      {
        "code": "850690",
        "description": "Parts"
      }
    ],
    "related": [],
    "previous": {
      "code": "850630",
      "description": "Mercuric oxide",
      "indexable": true
    },
    "next": {
      "code": "850650",
      "description": "Lithium",
      "indexable": true
    },
    "schedules": [
      {
        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 3,
        "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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      "robots": "index",
      "sitemap": true,
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    "pages": 1,
    "size": 100,
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  "previous": "https://border.bot/hs-codes/850630",
  "next": "https://border.bot/hs-codes/850650",
  "links": {
    "self": "https://border.bot/hs-codes/850640.json",
    "html": "https://border.bot/hs-codes/850640",
    "canonical": "https://border.bot/hs-codes/850640",
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  "code": "850640",
  "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.",
  "catalogVersion": "08bc53aa"
}