{
  "summary": "HS code 5508.10 covers sewing thread of man-made staple fibres, whether or not put up for retail sale, of synthetic staple fibres. It sits in heading 55.08 (sewing thread of man-made staple fibres, whether or not put up for retail sale) in chapter 55 (man-made staple fibres). Other goods of heading 55.08 are classified under 5508.20 (of artificial staple fibres). National tariff lines under 5508.10 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": "5508.10",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Sewing thread of man-made staple fibres, whether or not put up for retail sale, of synthetic staple fibres",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "55.08: Sewing thread of man-made staple fibres, whether or not put up for retail sale",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/5508"
    },
    {
      "label": "Chapter",
      "value": "55: Man-made staple fibres",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/55"
    },
    {
      "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/550810"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 5508.10 cover?",
      "answer": "HS code 5508.10 covers sewing thread of man-made staple fibres, whether or not put up for retail sale, of synthetic staple fibres."
    },
    {
      "question": "Which heading and chapter is HS code 5508.10 in?",
      "answer": "HS code 5508.10 is in heading 55.08 (sewing thread of man-made staple fibres, whether or not put up for retail sale) in chapter 55 (man-made staple fibres)."
    },
    {
      "question": "Where are goods of heading 55.08 classified when 5508.10 doesn’t fit?",
      "answer": "Other goods of heading 55.08 are classified under 5508.20 (of artificial staple fibres)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 5508.10?",
      "answer": "National tariff lines under 5508.10 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 5508.10 covers sewing thread of man-made staple fibres, whether or not put up for retail sale, of synthetic staple fibres.",
        "The legal text of the subheading is “Of synthetic staple fibres”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 55.08 are classified under 5508.20 (of artificial staple fibres)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "5508.10 is a six-digit subheading. Its first two digits, 55, are the chapter; the first four, 5508, are heading 55.08; the last two, 10, 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 5508.10 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": "55",
      "description": "Man-made staple fibres"
    },
    "heading": {
      "code": "5508",
      "description": "Sewing thread of man-made staple fibres, whether or not put up for retail sale"
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    "subheading": {
      "code": "550810",
      "description": "Of synthetic staple fibres",
      "levels": [
        "Of synthetic staple fibres"
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      "english": null,
      "keywords": []
    },
    "siblings": [
      {
        "code": "550820",
        "description": "Of artificial staple fibres"
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    "previous": {
      "code": "550700",
      "description": "Artificial staple fibres, carded, combed or otherwise processed for spinning",
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        "name": "United States",
        "slug": "united-states",
        "lines": 1,
        "members": 1
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    "provenance": [
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        "dataset": "GLOBAL:hs",
        "country": "GLOBAL",
        "kind": "hs",
        "seq": 2,
        "version": "mytraddal hs2022.csv (HS 2022)",
        "liveAt": "2026-10-11T06:04:17.693Z",
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  "code": "550810",
  "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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