{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "1518",
  "company_name": "三井松島ホールディングス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/1518/",
  "api_url": "/api/1518/decisions.json",
  "updated": "2026-08-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1518/",
  "count": 2,
  "description": "Index of this company's management decisions. One decision = one endpoint: follow api_url for the full dossier (background, the decision itself, outcome, quoted primary sources and references).",
  "decisions": [
    {
      "slug": "coal-spinoff-diversification-1973",
      "url": "/tse/1518/decisions/coal-spinoff-diversification-1973/",
      "api_url": "/api/1518/decisions/coal-spinoff-diversification-1973.json",
      "year": 1973,
      "month": 4,
      "type": "transformation",
      "tags": [
        "cp-spinoff",
        "pf-diversify-unrelated",
        "bm-core-shift"
      ],
      "title": "石炭生産部門の分離と兼業会社への転換 ― 松島炭鉱から松島興産へ",
      "subtitle": "エネルギー革命と石炭政策のもとで、祖業の「掘る部門」をどう切り離し、何で食いつなごうとしたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "coal-exit-ma-pivot-2024",
      "url": "/tse/1518/decisions/coal-exit-ma-pivot-2024/",
      "api_url": "/api/1518/decisions/coal-exit-ma-pivot-2024.json",
      "year": 2024,
      "month": 3,
      "type": "transformation",
      "tags": [
        "ma-rollup",
        "bm-core-shift",
        "pf-exit"
      ],
      "title": "連続M&Aによる脱石炭転換と、111年続いた石炭事業からの撤退",
      "subtitle": "潤沢な現預金と旧村上系株主の視線のもとで、吉岡泰士社長は祖業をどう畳み、何を買い集めたか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "transformation",
      "count": 2,
      "url": "/api/1518/decisions/by-type/transformation.json"
    }
  ],
  "by_decade": [
    {
      "key": "1970s",
      "count": 1,
      "url": "/api/1518/decisions/by-decade/1970s.json"
    },
    {
      "key": "2020s",
      "count": 1,
      "url": "/api/1518/decisions/by-decade/2020s.json"
    }
  ]
}