{
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  "endpoint": "timeline",
  "stock_code": "9303",
  "company_name": "住友倉庫",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9303/",
  "api_url": "/api/9303/timeline.json",
  "updated": "2026-08-15",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9303/",
  "source": {
    "primary": [
      "有価証券報告書",
      "統合報告書2025"
    ],
    "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": "1899/7",
      "importance": 1,
      "event": "住友家の個人営業として大阪で倉庫業を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1917",
      "importance": 1,
      "event": "港運業務に参入",
      "source": "統合報告書2025"
    },
    {
      "date": "1919/1",
      "importance": 1,
      "event": "東京支店を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1921/2",
      "importance": 2,
      "event": "住友合資会社倉庫部に改組",
      "source": "有価証券報告書"
    },
    {
      "date": "1923/8",
      "importance": 2,
      "event": "倉庫部を分離独立して設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1942/12",
      "importance": 2,
      "event": "港湾運送事業等統制令により港運業務の大部分を譲渡",
      "source": "有価証券報告書"
    },
    {
      "date": "1944/5",
      "importance": 3,
      "event": "日本倉庫統制への供出により倉庫営業を休止",
      "source": "有価証券報告書"
    },
    {
      "date": "1945/12",
      "importance": 2,
      "event": "日本倉庫統制の解散により倉庫営業を再開",
      "source": "有価証券報告書"
    },
    {
      "date": "1947/9",
      "importance": 1,
      "event": "九州地区の拠点として博多臨港倉庫を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1948/10",
      "importance": 1,
      "event": "貨物自動車運送事業を目的として井住運送を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1948/12",
      "importance": 2,
      "event": "閉鎖機関に指定された港運会社から船舶等の返還を受け港湾運送業を再開",
      "source": "有価証券報告書"
    },
    {
      "date": "1950/10",
      "importance": 1,
      "event": "大阪証券取引所および東京証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/4",
      "importance": 3,
      "event": "神戸および東京でコンテナターミナル業務を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/11",
      "importance": 2,
      "event": "米国サンフランシスコに駐在員事務所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1974/10",
      "importance": 3,
      "event": "川口住倉ビルディングの賃貸で不動産賃貸業に参入",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/9",
      "importance": 2,
      "event": "ドイツに駐在員事務所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/7",
      "importance": 1,
      "event": "ドイツに子会社 Sumitomo Warehouse (Deutschland) GmbH を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/4",
      "importance": 1,
      "event": "米国に子会社 Sumitomo Warehouse (U.S.A.), Inc. を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/11",
      "importance": 2,
      "event": "IATA貨物代理店資格の取得で航空貨物取扱に参入",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/2",
      "importance": 1,
      "event": "東京都中央区に東京住友ツインビルディングを竣工",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/10",
      "importance": 1,
      "event": "シンガポールに子会社 Sumitomo Warehouse (Singapore) Pte Ltd を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/8",
      "importance": 1,
      "event": "国際航空貨物の単独混載業を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/12",
      "importance": 1,
      "event": "中国上海に子会社 上海住友倉儲有限公司 を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/12",
      "importance": 1,
      "event": "東京都大田区に免震構法のトランクルーム専用倉庫を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/3",
      "importance": 1,
      "event": "神戸市東灘区に冷蔵設備併設倉庫を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/4",
      "importance": 1,
      "event": "アイスターの全株式を取得し子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/9",
      "importance": 2,
      "event": "遠州トラックの発行済株式の60.0%を公開買付けで取得",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/11",
      "importance": 1,
      "event": "中国上海に子会社 住友倉儲（中国）有限公司 を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/8",
      "importance": 1,
      "event": "サウジアラビアに合弁会社 Rabigh Petrochemical Logistics LLC を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/9",
      "importance": 3,
      "event": "米国の海運会社 Westwood Shipping Lines を子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/7",
      "importance": 1,
      "event": "倉庫業等を営む若洲の全株式を取得し子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/6",
      "importance": 3,
      "event": "Westwood Shipping Lines の譲渡で海運事業から撤退",
      "source": "有価証券報告書"
    }
  ]
}