{
  "summary": "HS code 2925.21 covers imines and their derivatives; salts thereof, chlordimeform (ISO). It sits in heading 29.25 (carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds) in chapter 29 (organic chemicals). Other goods of heading 29.25 are classified under 2925.11 (imides and their derivatives; salts thereof, saccharin and its salts), 2925.12 (imides and their derivatives; salts thereof, glutethimide (INN)), 2925.19 (imides and their derivatives; salts thereof, other) and 2925.29 (imines and their derivatives; salts thereof, other). National tariff lines under 2925.21 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": "2925.21",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Covers",
      "value": "Imines and their derivatives; salts thereof, chlordimeform (ISO)",
      "source": "border.bot release GLOBAL:hs #2"
    },
    {
      "label": "Heading",
      "value": "29.25: Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/2925"
    },
    {
      "label": "Chapter",
      "value": "29: Organic chemicals",
      "source": "border.bot release GLOBAL:hs #2",
      "url": "https://border.bot/hs-codes/29"
    },
    {
      "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/292521"
    }
  ],
  "faq": [
    {
      "question": "What does HS code 2925.21 cover?",
      "answer": "HS code 2925.21 covers imines and their derivatives; salts thereof, chlordimeform (ISO)."
    },
    {
      "question": "Which heading and chapter is HS code 2925.21 in?",
      "answer": "HS code 2925.21 is in heading 29.25 (carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds) in chapter 29 (organic chemicals)."
    },
    {
      "question": "Where are goods of heading 29.25 classified when 2925.21 doesn’t fit?",
      "answer": "Other goods of heading 29.25 are classified under 2925.11 (imides and their derivatives; salts thereof, saccharin and its salts), 2925.12 (imides and their derivatives; salts thereof, glutethimide (INN)), 2925.19 (imides and their derivatives; salts thereof, other) and 2925.29 (imines and their derivatives; salts thereof, other)."
    },
    {
      "question": "Which countries’ tariffs list national lines under HS code 2925.21?",
      "answer": "National tariff lines under 2925.21 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 2925.21 covers imines and their derivatives; salts thereof, chlordimeform (ISO).",
        "The legal text of the subheading is “Imines and their derivatives; salts thereof: Chlordimeform (ISO)”, read under “Imines and their derivatives; salts thereof”, in HS2022."
      ]
    },
    {
      "id": "not-covered",
      "title": "What it doesn’t cover",
      "text": [
        "Other goods of heading 29.25 are classified under 2925.11 (imides and their derivatives; salts thereof, saccharin and its salts), 2925.12 (imides and their derivatives; salts thereof, glutethimide (INN)), 2925.19 (imides and their derivatives; salts thereof, other) and 2925.29 (imines and their derivatives; salts thereof, other)."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "2925.21 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2925, are heading 29.25; the last two, 21, 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 2925.21 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."
      ]
    }
  ],
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    "type": "hs-subheading",
    "edition": "HS2022",
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      "code": "29",
      "description": "Organic chemicals"
    },
    "heading": {
      "code": "2925",
      "description": "Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds"
    },
    "subheading": {
      "code": "292521",
      "description": "Imines and their derivatives; salts thereof: Chlordimeform (ISO)",
      "levels": [
        "Imines and their derivatives; salts thereof",
        "Chlordimeform (ISO)"
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      "english": null,
      "keywords": []
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      {
        "code": "292511",
        "description": "Imides and their derivatives; salts thereof: Saccharin and its salts"
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        "code": "292512",
        "description": "Imides and their derivatives; salts thereof: Glutethimide (INN)"
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        "code": "292519",
        "description": "Imides and their derivatives; salts thereof: Other"
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        "code": "292529",
        "description": "Imines and their derivatives; salts thereof: Other"
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        "code": "US",
        "name": "United States",
        "slug": "united-states",
        "lines": 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": "292521",
  "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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