{
  "timeline": [
    {
      "date": "1873/2",
      "category": "会社設立",
      "region": "",
      "importance": 4,
      "event": "渋沢栄一が「抄紙会社」を設立",
      "detail": "わが国初の洋紙製造会社として発起",
      "significance": "日本近代製紙業の出発点",
      "source": "",
      "amount": "資本金15万円"
    },
    {
      "date": "1875/6",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "東京府下王子村に工場完成",
      "detail": "",
      "significance": "王子の地名が後の社名の由来となる",
      "source": ""
    },
    {
      "date": "1893/11",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "「王子製紙株式会社」に改称",
      "detail": "",
      "significance": "現社名の原型確立",
      "source": ""
    },
    {
      "date": "1898/9",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "藤原銀次郎が本社支配人に就任",
      "detail": "富岡製糸所支配人から転じ大ストライキを収拾、三井系列下に入る契機",
      "significance": "三井系製紙メーカーへの転換点",
      "source": ""
    },
    {
      "date": "1910/9",
      "category": "設備投資",
      "region": "",
      "importance": 3,
      "event": "苫小牧工場完成",
      "detail": "鈴木権四郎が三井を説得して建設、新聞用紙の国内自給自足を実現",
      "significance": "新聞用紙国産化の達成、企業基盤確立",
      "source": ""
    },
    {
      "date": "1933/5",
      "category": "組織再編",
      "region": "",
      "importance": 4,
      "event": "富士製紙・樺太工業を合併",
      "detail": "池田成彬・結城豊太郎の斡旋、藤原銀次郎が社長就任",
      "significance": "世界屈指の製紙会社が誕生し業界寡占体制が確立",
      "source": "",
      "amount": "国内シェア80%・新聞用紙95%・34工場体制"
    },
    {
      "date": "1945/8",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "終戦により国内生産が激減",
      "detail": "在外10工場・国内戦災8工場を喪失、残存15工場のみ",
      "significance": "戦時体制崩壊と海外資産喪失",
      "source": "",
      "amount": "残存15/35工場"
    },
    {
      "date": "1949/8",
      "category": "組織再編",
      "region": "",
      "importance": 5,
      "event": "集中排除法により3分割、苫小牧製紙として再発足",
      "detail": "十條製紙・本州製紙とともに分離。1社1工場でスタート",
      "significance": "財閥解体・独禁政策の象徴的事例、戦後製紙業の出発点",
      "source": "有価証券報告書",
      "amount": "資本金4億円"
    },
    {
      "date": "1952/6",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "商号を「王子製紙工業株式会社」に変更",
      "detail": "春日井工場稼働に合わせ改称",
      "significance": "業容拡大に合わせた社名再構築",
      "source": "有価証券報告書"
    },
    {
      "date": "1956/9",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "林木育種研究所を設置",
      "detail": "現イノベーション推進本部",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1957/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "中央研究所を設置",
      "detail": "現イノベーション推進本部",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1958/7",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "王子労組が145日間のストライキに突入",
      "detail": "12月の仲裁裁定まで継続、翌年新労組と労働協約締結",
      "significance": "戦後労働運動史に残る長期争議",
      "source": "",
      "amount": "145日間"
    },
    {
      "date": "1960/12",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "商号を由緒ある「王子製紙株式会社」に復活",
      "detail": "",
      "significance": "戦前の名跡を取り戻す象徴的改称",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/8",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "苫小牧新工場に新1号抄紙機を増設",
      "detail": "わが国最大の抄幅",
      "significance": "世界最大級の新聞用紙抄紙機",
      "source": "",
      "amount": "抄幅274インチ"
    },
    {
      "date": "1968/3",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "王子・十條・本州の3社合併覚書に調印するも9月に取下げ",
      "detail": "公正取引委員会の理解を得られず断念",
      "significance": "戦後分割解消が頓挫、業界再編が四半世紀遅延",
      "source": ""
    },
    {
      "date": "1970/9",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "北日本製紙株式会社と合併",
      "detail": "江別工場を引き継ぎ",
      "significance": "戦後分割後の規模回復路線開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/3",
      "category": "海外進出",
      "region": "その他",
      "importance": 2,
      "event": "Carter Oji Kokusaku Pan Pacific Project稼働",
      "detail": "ニュージーランドの合弁パルプ事業",
      "significance": "本格的な海外資源開発の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/3",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "日本パルプ工業株式会社と合併",
      "detail": "日南工場・米子工場を引き継ぐ",
      "significance": "規模拡大による業界トップ復帰の布石",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/4",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "東洋パルプ株式会社と合併",
      "detail": "呉工場を引き継ぐ",
      "significance": "西日本生産拠点を強化",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/10",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "神崎製紙株式会社と合併し「新王子製紙」に改称",
      "detail": "神崎工場・富岡工場を加える",
      "significance": "印刷情報用紙・特殊紙系を取り込み総合化",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/10",
      "category": "組織再編",
      "region": "",
      "importance": 4,
      "event": "本州製紙株式会社と合併し「王子製紙株式会社」に改称",
      "detail": "戦後分割で分かれた兄弟会社の再統合",
      "significance": "戦後分割の事実上の解消、業界トップ地位を確立",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/5",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "「王子板紙株式会社」を設立",
      "detail": "段ボール原紙の共同販売、3社共同出資",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "段ボール子会社7社を「王子コンテナー」に統合",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "段ボール原紙の生産・販売体制を一元化",
      "detail": "王子板紙へ製造部門・関連子会社を統合",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "家庭用紙事業を「王子ネピア」に統合",
      "detail": "株式会社ネピアに製造部門・ホクシーを統合",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "特殊紙・フィルム事業を「王子特殊紙」に統合",
      "detail": "現王子エフテックス",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/12",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "森紙業グループ各社の株式を取得",
      "detail": "段ボール業界第3位",
      "significance": "段ボール事業の国内首位固め",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/10",
      "category": "海外進出",
      "region": "中国",
      "importance": 3,
      "event": "中国江蘇省南通市に江蘇王子製紙有限公司を設立",
      "detail": "現地合弁",
      "significance": "本格的な中国大型抄紙投資",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "初の純損失を計上",
      "detail": "リーマンショックによる業況悪化",
      "significance": "戦後分割後初の連結赤字",
      "source": "有価証券報告書",
      "amount": "純損失▲63億円"
    },
    {
      "date": "2010/4",
      "category": "企業買収",
      "region": "東南アジア",
      "importance": 2,
      "event": "Paperbox Holdings(マレーシア)の株式取得",
      "detail": "GS Paper & Packagingの持株会社",
      "significance": "東南アジア段ボール展開の足がかり",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "進藤清貴が代表取締役社長に就任",
      "detail": "篠田和久から交代",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/8",
      "category": "企業買収",
      "region": "東南アジア",
      "importance": 2,
      "event": "HPI Resources Bhd.(マレーシア)の株式取得",
      "detail": "Harta Packagingグループ親会社",
      "significance": "東南アジア段ボール大手の取り込み",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/9",
      "category": "企業買収",
      "region": "米州",
      "importance": 2,
      "event": "ブラジルの感熱記録紙拠点を取得",
      "detail": "Fibria Celulose社から、Oji Papéis Especiaisに改称",
      "significance": "中南米の特殊紙生産拠点獲得",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/6",
      "category": "企業買収",
      "region": "米州",
      "importance": 3,
      "event": "日伯紙パルプ資源開発(CENIBRA親会社)を子会社化",
      "detail": "JICAより株式取得",
      "significance": "ブラジル市販パルプ事業の中核取得、海外資源戦略の核に",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/10",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "持株会社制に移行し「王子ホールディングス株式会社」に商号変更",
      "detail": "",
      "significance": "事業多角化に対応するグループ統治体制確立",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "矢嶋進が代表取締役社長に就任",
      "detail": "進藤清貴から交代",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/12",
      "category": "企業買収",
      "region": "その他",
      "importance": 4,
      "event": "Carter Holt Harvey Pulp & Paperを取得",
      "detail": "ニュージーランド・オーストラリア拠点、現Oji Fibre Solutions",
      "significance": "オセアニア段ボール・パルプ事業の中核取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "加来正年が代表取締役社長に就任",
      "detail": "矢嶋進から交代",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/5",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "日伯紙パルプ資源開発の議決権割合が100%に増加",
      "detail": "自己株式取得の結果",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "磯野裕之が代表取締役社長に就任",
      "detail": "加来正年から交代、森林資源軸の事業転換を主導",
      "significance": "森林資源・木質バイオへのピボット開始",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/3",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "王子オセアニアマネジメントを完全子会社化",
      "detail": "Oji Fibre Solutions関連",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/9",
      "category": "企業買収",
      "region": "中国",
      "importance": 2,
      "event": "Adampakグループの株式取得",
      "detail": "東南アジア・中国6カ国の高機能ラベル印刷加工",
      "significance": "東南アジア機能材事業の強化",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/4",
      "category": "企業買収",
      "region": "欧州",
      "importance": 3,
      "event": "Walkiグループ(フィンランド)の株式取得",
      "detail": "欧州のサステナブル包装資材メーカー",
      "significance": "環境配慮型パッケージング欧州拠点獲得、磯野体制の戦略M&A",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/5",
      "category": "経営計画",
      "region": "",
      "importance": 2,
      "event": "FY23決算発表、海外パルプ事業が大幅減益",
      "detail": "PanPac社災害・市況下落の影響、国内は値上げで増益",
      "significance": "国内外損益が完全逆転、海外資源依存リスクが顕在化",
      "source": "IR",
      "amount": "海外営業利益▲582億円"
    },
    {
      "date": "2025/5",
      "category": "経営計画",
      "region": "",
      "importance": 3,
      "event": "中長期経営計画と連動し配当性向30%→50%へ引き上げ",
      "detail": "FY25年間配当36円/株(前年24円)",
      "significance": "株主還元方針の大幅転換、資本効率改善路線の鮮明化",
      "source": "IR",
      "amount": "配当性向50%・年36円/株"
    }
  ]
}