{
  "stock_code": "1518",
  "company_name": "三井松島ホールディングス",
  "company_color": "#274294",
  "industry": "metal",
  "published": "2026-05-09",
  "updated": "2026-05-08",
  "found": {
    "year": 1913,
    "location": "長崎県西彼杵郡松島",
    "founder": "※三井財閥"
  },
  "listing": {
    "listed_year": 1961,
    "delisted_year": null,
    "unlisted": false
  },
  "old_name": "松島炭鉱、三井松島産業"
}