{
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  "company_name": "ホクト",
  "content_lang": "ja",
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  "updated": "2026-08-23",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1379/",
  "source": {
    "primary": [
      "有価証券報告書",
      "有価証券報告書／公式サイト「ホクトの歴史」"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
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  "timeline": [
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      "date": "1964/7",
      "importance": 1,
      "event": "デラップス商事を設立",
      "source": "有価証券報告書／公式サイト「ホクトの歴史」"
    },
    {
      "date": "1968/4",
      "importance": 3,
      "event": "きのこ栽培用ポリプロピレンビンの製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/6",
      "importance": 1,
      "event": "本社を移転",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/2",
      "importance": 1,
      "event": "ホクト産業に商号変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/12",
      "importance": 2,
      "event": "きのこ総合研究所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/4",
      "importance": 2,
      "event": "えのきたけ新品種ホクトM-50を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/4",
      "importance": 3,
      "event": "柳原きのこセンターを設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/4",
      "importance": 2,
      "event": "更埴キノコセンターからきのこ栽培部門を譲受",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/10",
      "importance": 3,
      "event": "ぶなしめじ新品種ホクト5号菌を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/8",
      "importance": 2,
      "event": "ひらたけ新品種ホクトY-5を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/11",
      "importance": 1,
      "event": "日本証券業協会に株式を店頭登録",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/8",
      "importance": 2,
      "event": "まいたけ新品種ホクトMY-75号・MY-95号を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/2",
      "importance": 3,
      "event": "エリンギ新品種ホクトPLE-2号を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/11",
      "importance": 1,
      "event": "東京証券取引所市場第一部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/7",
      "importance": 2,
      "event": "ブナピー新品種ホクト白1号菌を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/10",
      "importance": 1,
      "event": "ホクトに商号変更",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/4",
      "importance": 2,
      "event": "化成品部門を分社化しホクト産業を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/4",
      "importance": 1,
      "event": "ホクトメディカルを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/7",
      "importance": 2,
      "event": "HOKTO KINOKO COMPANYを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/3",
      "importance": 2,
      "event": "台灣北斗生技股份有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/11",
      "importance": 1,
      "event": "HOKTO MALAYSIA SDN.BHD.を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/8",
      "importance": 2,
      "event": "アーデンを完全子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/2",
      "importance": 1,
      "event": "きのこセンターを設置",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/5",
      "importance": 2,
      "event": "サン・メディカとMushroom Wisdom,Inc.を完全子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "プライム市場に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/1",
      "importance": 1,
      "event": "PT HOKTO INDONESIA MATERIALSを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/3",
      "importance": 2,
      "event": "柳原きのこセンターを閉鎖",
      "source": "有価証券報告書"
    }
  ]
}