{
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  "endpoint": "timeline",
  "stock_code": "3880",
  "company_name": "大王製紙",
  "content_lang": "ja",
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  "updated": "2026-08-09",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/3880/",
  "source": {
    "primary": [
      "有価証券報告書"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
    "row_field": "source"
  },
  "timeline": [
    {
      "date": "1943/5",
      "importance": 3,
      "event": "愛媛県伊予三島で大王製紙を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1945/12",
      "importance": 2,
      "event": "生産設備を三島工場に集約",
      "source": "有価証券報告書"
    },
    {
      "date": "1956/4",
      "importance": 2,
      "event": "銅山川製紙から設備を買収し川之江工場を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1956/8",
      "importance": 1,
      "event": "大阪証券取引所に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1957/7",
      "importance": 1,
      "event": "東京証券取引所に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/10",
      "importance": 1,
      "event": "大阪・東京両証券取引所の市場第一部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/5",
      "importance": 3,
      "event": "会社更生手続開始の申立（同年6月開始決定）",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/10",
      "importance": 1,
      "event": "名古屋出張所の開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1963/12",
      "importance": 2,
      "event": "大阪・東京両証券取引所で上場廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/1",
      "importance": 1,
      "event": "日本証券業協会大阪地区協会の店頭登録銘柄に指定",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/4",
      "importance": 2,
      "event": "更生計画の認可",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/4",
      "importance": 2,
      "event": "会社更生手続の終結",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/7",
      "importance": 1,
      "event": "福岡出張所の開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/10",
      "importance": 1,
      "event": "新1・2号ライナー抄紙機と新3号新聞用紙抄紙機を増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1977/8",
      "importance": 1,
      "event": "新4号新聞用紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/7",
      "importance": 1,
      "event": "東京紙パルプ交易の設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/1",
      "importance": 1,
      "event": "日本証券業協会大阪地区協会の店頭登録銘柄に再指定",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/4",
      "importance": 3,
      "event": "ティシューペーパー「エリエール」で家庭紙市場へ参入",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/11",
      "importance": 1,
      "event": "大阪証券取引所市場第二部に再上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/6",
      "importance": 2,
      "event": "丸紅から名古屋パルプを買収",
      "source": "有価証券報告書"
    },
    {
      "date": "1984/9",
      "importance": 1,
      "event": "大阪証券取引所市場第一部銘柄に指定",
      "source": "有価証券報告書"
    },
    {
      "date": "1984/9",
      "importance": 1,
      "event": "新5号新聞用紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/6",
      "importance": 1,
      "event": "燃料転換のための大型石炭燃焼設備が完成",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/2",
      "importance": 1,
      "event": "東京証券取引所市場第一部に再上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/7",
      "importance": 1,
      "event": "新7号新聞用紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/1",
      "importance": 2,
      "event": "東京支社を東京本社に昇格させ二本社制へ移行",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/4",
      "importance": 1,
      "event": "新8号コート原紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/6",
      "importance": 1,
      "event": "フォレスタル・アンチレの設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/3",
      "importance": 1,
      "event": "新6号新聞用紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/4",
      "importance": 1,
      "event": "いわき大王製紙の設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/4",
      "importance": 2,
      "event": "名古屋パルプを吸収合併し可児工場へ改組",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/9",
      "importance": 2,
      "event": "米P&Gから大人用紙おむつ「アテント」事業を譲受",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/9",
      "importance": 1,
      "event": "新10号塗工紙抄紙機の増設",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/1",
      "importance": 1,
      "event": "エリエール・インターナショナル・タイランドの設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/1",
      "importance": 2,
      "event": "連結子会社を37社から8社に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/2",
      "importance": 1,
      "event": "エリエール・インターナショナル・コリアの設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/2",
      "importance": 1,
      "event": "連結子会社を8社から19社に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/8",
      "importance": 1,
      "event": "連結子会社を19社から43社に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/12",
      "importance": 1,
      "event": "大王（南通）生活用品の設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/3",
      "importance": 1,
      "event": "エリエール・インターナショナル・トレーディング・インドネシアの設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/4",
      "importance": 1,
      "event": "同一事業の子会社間合併で連結子会社を35社に集約",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/11",
      "importance": 1,
      "event": "エリエール・インターナショナル・マニュファクチャリング・インドネシアの設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/4",
      "importance": 1,
      "event": "段ボール事業の子会社間合併で連結子会社を29社に集約",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/9",
      "importance": 1,
      "event": "東京本社と関連部門を千代田区富士見に移転・集約",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/4",
      "importance": 2,
      "event": "日清紡ホールディングスから日清紡ペーパープロダクツの全株式を取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/4",
      "importance": 1,
      "event": "三浦印刷の取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/10",
      "importance": 1,
      "event": "川之江工場で衛生用紙の新マシンが稼働",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/1",
      "importance": 1,
      "event": "千明社を設立しSMSから印刷事業等を譲受",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/5",
      "importance": 2,
      "event": "トルコの衛生用品メーカー、ウゼンの全株式を取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/6",
      "importance": 2,
      "event": "ブラジルの衛生用品メーカー、サンテルの株式51%を取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/7",
      "importance": 1,
      "event": "三島工場でペーパータオル専抄マシンが稼働",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/10",
      "importance": 1,
      "event": "川之江工場で2台目の衛生用紙マシンが稼働",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "子会社5社の合併によりダイオーミウラを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "東京証券取引所プライム市場へ移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/10",
      "importance": 2,
      "event": "ペット用品製造の大貴の全株式を取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/7",
      "importance": 1,
      "event": "エリエール・インターナショナル・ベトナムの設立",
      "source": "有価証券報告書"
    }
  ]
}