{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "5238",
  "company_name": "三菱鉱業セメント",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5238/",
  "api_url": "/api/5238/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/5238/",
  "count": 3,
  "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": "cement-entry-separate-company-1953",
      "url": "/tse/5238/decisions/cement-entry-separate-company-1953/",
      "api_url": "/api/5238/decisions/cement-entry-separate-company-1953.json",
      "year": 1953,
      "month": 8,
      "type": "new_business",
      "tags": [
        "pf-diversify-related",
        "st-capex",
        "cp-crossholding"
      ],
      "title": "石炭に代わる事業としてのセメント選定と、三菱系各社共同出資による三菱セメントの設立",
      "subtitle": "直営か、別会社か——石炭不況下の資金と労務が、参入の形をどう決めたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "coal-division-spinoff-1969",
      "url": "/tse/5238/decisions/coal-division-spinoff-1969/",
      "api_url": "/api/5238/decisions/coal-division-spinoff-1969.json",
      "year": 1969,
      "month": 5,
      "type": "restructuring",
      "tags": [
        "cp-spinoff",
        "bm-core-shift",
        "tr-turnaround"
      ],
      "title": "石炭生産部門の分離と、三菱高島炭砿・三菱大夕張炭砿の設立",
      "subtitle": "国家管理をともなう全国再編か、自力での分離か——大槻文平社長は創業以来の石炭部門をどう切り離したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "three-way-merger-1973",
      "url": "/tse/5238/decisions/three-way-merger-1973/",
      "api_url": "/api/5238/decisions/three-way-merger-1973.json",
      "year": 1973,
      "month": null,
      "type": "merger",
      "tags": [
        "ma-merger",
        "ma-pmi",
        "gv-labor"
      ],
      "title": "三菱セメント・豊国セメントとの3社合併と、三菱鉱業セメントへの商号変更",
      "subtitle": "業績不振の親会社と一緒になって何の得があるか——19年育てた子会社を本体へ吸収する条件を、両社長はどう組んだか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "merger",
      "count": 1,
      "url": "/api/5238/decisions/by-type/merger.json"
    },
    {
      "key": "new_business",
      "count": 1,
      "url": "/api/5238/decisions/by-type/new_business.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/5238/decisions/by-type/restructuring.json"
    }
  ],
  "by_decade": [
    {
      "key": "1950s",
      "count": 1,
      "url": "/api/5238/decisions/by-decade/1950s.json"
    },
    {
      "key": "1960s",
      "count": 1,
      "url": "/api/5238/decisions/by-decade/1960s.json"
    },
    {
      "key": "1970s",
      "count": 1,
      "url": "/api/5238/decisions/by-decade/1970s.json"
    }
  ]
}