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      "reference": "会社年鑑"
    },
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      "month": 3,
      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
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      "reference": "会社年鑑"
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      "year": 1994,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
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    },
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      "year": 1995,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
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      "operating_profit": null,
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      "net_profit_jp": "当期純利益",
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      "reference": "会社年鑑"
    },
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      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 3704,
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      "operating_profit": null,
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      "net_margin": 2.051,
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      "reference": "会社年鑑"
    },
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      "year": 1997,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
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      "operating_profit": null,
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      "net_margin": 1.348,
      "employees": null,
      "reference": "会社年鑑"
    },
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      "year": 1998,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "operating_profit": null,
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      "net_margin": 2.226,
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      "reference": "会社年鑑"
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      "year": 1999,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "operating_profit_jp": null,
      "operating_profit": null,
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      "ordinary_profit": null,
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      "net_profit": 123,
      "net_margin": 3.072,
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      "reference": "会社年鑑"
    },
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      "year": 2000,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "operating_profit_jp": null,
      "operating_profit": null,
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      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "net_margin": 3.572,
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      "reference": "会社年鑑"
    },
    {
      "year": 2001,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 4237,
      "operating_profit_jp": null,
      "operating_profit": null,
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      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "net_margin": 4.012,
      "employees": null,
      "reference": "会社年鑑"
    },
    {
      "year": 2002,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
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      "sales": 3734,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 188,
      "net_profit_jp": "当期純利益",
      "net_profit": 19,
      "net_margin": 0.508,
      "employees": 8619,
      "reference": "有価証券報告書"
    },
    {
      "year": 2003,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 3786,
      "operating_profit_jp": null,
      "operating_profit": null,
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      "ordinary_profit": 212,
      "net_profit_jp": "当期純利益",
      "net_profit": 30,
      "net_margin": 0.792,
      "employees": 8339,
      "reference": "有価証券報告書"
    },
    {
      "year": 2004,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "operating_profit_jp": null,
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      "net_profit_jp": "当期純利益",
      "net_profit": 114,
      "net_margin": 2.894,
      "employees": 9397,
      "reference": "有価証券報告書"
    },
    {
      "year": 2005,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 4381,
      "operating_profit_jp": "営業利益",
      "operating_profit": 445,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 454,
      "net_profit_jp": "当期純利益",
      "net_profit": 207,
      "net_margin": 4.724,
      "employees": 9701,
      "reference": "有価証券報告書"
    },
    {
      "year": 2006,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 5033,
      "operating_profit_jp": "営業利益",
      "operating_profit": 451,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 505,
      "net_profit_jp": "当期純利益",
      "net_profit": 233,
      "net_margin": 4.629,
      "employees": 9965,
      "reference": "有価証券報告書"
    },
    {
      "year": 2007,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 5915,
      "operating_profit_jp": "営業利益",
      "operating_profit": 389,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 566,
      "net_profit_jp": "当期純利益",
      "net_profit": 313,
      "net_margin": 5.291,
      "employees": 10403,
      "reference": "有価証券報告書"
    },
    {
      "year": 2008,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 5954,
      "operating_profit_jp": "営業利益",
      "operating_profit": 280,
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      "ordinary_profit": 418,
      "net_profit_jp": "当期純利益",
      "net_profit": 78,
      "net_margin": 1.31,
      "employees": 11369,
      "reference": "有価証券報告書"
    },
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      "year": 2009,
      "month": 3,
      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4271,
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      "net_profit_jp": "当期純利益",
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      "net_margin": -15.735,
      "employees": 11189,
      "reference": "有価証券報告書"
    },
    {
      "year": 2010,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 3923,
      "operating_profit_jp": "営業利益",
      "operating_profit": 279,
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      "ordinary_profit": 256,
      "net_profit_jp": "当期純利益",
      "net_profit": 138,
      "net_margin": 3.517,
      "employees": 9851,
      "reference": "有価証券報告書"
    },
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      "year": 2011,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4464,
      "operating_profit_jp": "営業利益",
      "operating_profit": 302,
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      "ordinary_profit": 340,
      "net_profit_jp": "当期純利益",
      "net_profit": 211,
      "net_margin": 4.726,
      "employees": 9810,
      "reference": "有価証券報告書"
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      "year": 2012,
      "month": 3,
      "company_name": "三井金属鉱業",
      "consolidation": "連結",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4310,
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      "operating_profit": 209,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 192,
      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": 115,
      "net_margin": 2.668,
      "employees": 10113,
      "reference": "有価証券報告書"
    },
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      "year": 2013,
      "month": 3,
      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4172,
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      "operating_profit": 166,
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      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": 99,
      "net_margin": 2.372,
      "employees": 10154,
      "reference": "有価証券報告書"
    },
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      "year": 2014,
      "month": 3,
      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4410,
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      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": 36,
      "net_margin": 0.816,
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      "reference": "有価証券報告書"
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      "year": 2015,
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      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4732,
      "operating_profit_jp": "営業利益",
      "operating_profit": 318,
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      "ordinary_profit": 211,
      "net_profit_jp": "親会社株主に帰属する当期純利益",
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      "net_margin": 3.634,
      "employees": 10804,
      "reference": "有価証券報告書"
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      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4505,
      "operating_profit_jp": "営業利益",
      "operating_profit": 111,
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      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": -209,
      "net_margin": -4.64,
      "employees": 11132,
      "reference": "有価証券報告書"
    },
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      "year": 2017,
      "month": 3,
      "company_name": "三井金属鉱業",
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      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": 4363,
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      "operating_profit": 385,
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      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": 186,
      "net_margin": 4.263,
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      "reference": "有価証券報告書"
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      "year": 2018,
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      "company_name": "三井金属鉱業",
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      "sales": 5192,
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      "operating_profit": 495,
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      "ordinary_profit": 112,
      "net_profit_jp": "親会社株主に帰属する当期純利益",
      "net_profit": -7,
      "net_margin": -0.135,
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      "reference": "有価証券報告書"
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      "year": 2019,
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      "company_name": "三井金属鉱業",
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      "sales": 4977,
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      "net_profit": 46,
      "net_margin": 0.924,
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      "reference": "有価証券報告書"
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      "year": 2020,
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      "company_name": "三井金属鉱業",
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      "reference": "有価証券報告書"
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      "company_name": "三井金属鉱業",
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      "reference": "有価証券報告書"
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      "sales": 6333,
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      "reference": "有価証券報告書"
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      "reference": "有価証券報告書"
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      "year": 2024,
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      "reference": "有価証券報告書"
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}
