{
  "commentary": "- FY15時点ではCBNY-ORBIS SICAV 5.57%を筆頭に、信託2口・全国共済農協連2.39%・三井金属社員持株会2.16%が並ぶ機関投資家分散型構造だった。\n- FY24では日本マスタートラスト信託銀行18.91%・日本カストディ銀行11.96%で計約31%へ集中化、外国法人比率も29.09%へ上昇し信託集中＋外国法人の二極構造となっている。",
  "shareholders": [
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 1,
      "name": "CBNY - ORBIS SICAV (常任代理人 シティバンク銀行株式会社)",
      "shareholding_ratio": 5.57,
      "shares_held": 31959000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 5.54,
      "shares_held": 31764000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口)",
      "shareholding_ratio": 5.05,
      "shares_held": 28977000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "全国共済農業協同組合連合会 (常任代理人 日本マスタートラスト信託銀行株式会社)",
      "shareholding_ratio": 2.39,
      "shares_held": 13729000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 2.16,
      "shares_held": 12422000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "CBNY - ORBIS FUNDS (常任代理人 シティバンク銀行株式会社)",
      "shareholding_ratio": 1.77,
      "shares_held": 10176000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "J.P. MORGAN WHITEFRIARS INC. LONDON BRANCH (常任代理人 JPモルガン証券株式会社)",
      "shareholding_ratio": 1.75,
      "shares_held": 10048000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "GOLDMAN SACHS INTERNATIONAL（常任代理人 ゴールドマン・サックス証券株式会社）",
      "shareholding_ratio": 1.21,
      "shares_held": 6949000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口４)",
      "shareholding_ratio": 1.2,
      "shares_held": 6902000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "資産管理サービス信託銀行株式会社(証券投資信託口)",
      "shareholding_ratio": 1.16,
      "shares_held": 6656000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口)",
      "shareholding_ratio": 10.85,
      "shares_held": 62221000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 8.11,
      "shares_held": 46495000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 2.13,
      "shares_held": 12205000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "BBH BOSTON CUSTODIAN FOR JAPAN VALUE EQUITY CONCENTRATED FUND A SERIES OF 620135(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.85,
      "shares_held": 10657000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口５)",
      "shareholding_ratio": 1.82,
      "shares_held": 10457000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "資産管理サービス信託銀行株式会社(投信受入担保口)",
      "shareholding_ratio": 1.76,
      "shares_held": 10118000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口９)",
      "shareholding_ratio": 1.38,
      "shares_held": 7909000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "JPMCB : CREDIT SUISSE SECURITIES EUROPE - JPY 1007760(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.35,
      "shares_held": 7738000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口１)",
      "shareholding_ratio": 1.33,
      "shares_held": 7676000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "資産管理サービス信託銀行株式会社(証券投資信託口)",
      "shareholding_ratio": 1.33,
      "shares_held": 7652000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口)",
      "shareholding_ratio": 9.46,
      "shares_held": 5407000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 9.39,
      "shares_held": 5367000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口９)",
      "shareholding_ratio": 2.42,
      "shares_held": 1383000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口５)",
      "shareholding_ratio": 1.78,
      "shares_held": 1019000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 5,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 1.63,
      "shares_held": 935000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "CHASE MANHATTAN BANK GTS CLIENTS ACCOUNT ESCROW(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.55,
      "shares_held": 889000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口１)",
      "shareholding_ratio": 1.31,
      "shares_held": 753000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口２)",
      "shareholding_ratio": 1.31,
      "shares_held": 751000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385151(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.29,
      "shares_held": 738000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "GOLDMAN, SACHS& CO. REG(常任代理人 ゴールドマン・サックス証券株式会社)",
      "shareholding_ratio": 1.17,
      "shares_held": 671000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口)",
      "shareholding_ratio": 10.06,
      "shares_held": 5747000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 9.94,
      "shares_held": 5678000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口９)",
      "shareholding_ratio": 3.74,
      "shares_held": 2138000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "JP MORGAN CHASE BANK 385632(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 2.43,
      "shares_held": 1390000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "JP MORGAN CHASE BANK 385635(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.86,
      "shares_held": 1067000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口５)",
      "shareholding_ratio": 1.83,
      "shares_held": 1046000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 1.76,
      "shares_held": 1005000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口４)",
      "shareholding_ratio": 1.62,
      "shares_held": 926000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385151(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.48,
      "shares_held": 848000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "DFA INTL SMALL CAP VALUE PORTFOLIO(常任代理人 シティバンク、エヌ・エイ東京支店)",
      "shareholding_ratio": 1.28,
      "shares_held": 732000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 10.37,
      "shares_held": 5926000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口)",
      "shareholding_ratio": 8.26,
      "shares_held": 4718000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "JP MORGAN CHASE BANK 385632(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 3.83,
      "shares_held": 2187000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 4,
      "name": "JPモルガン証券株式会社",
      "shareholding_ratio": 2.18,
      "shares_held": 1246000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 1.93,
      "shares_held": 1105000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "日本トラスティ・サービス信託銀行株式会社(信託口５)",
      "shareholding_ratio": 1.9,
      "shares_held": 1086000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "JP MORGAN CHASE BANK 385151(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.65,
      "shares_held": 944000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "ＳＭＢＣ日興証券株式会社",
      "shareholding_ratio": 1.28,
      "shares_held": 735000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "三井金属取引先持株会",
      "shareholding_ratio": 1.19,
      "shares_held": 679000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "SOCIETE GENERALE PARIS/BT REGISTRATION MARC/OPT(常任代理人 ソシエテ・ジェネラル証券株式会社)",
      "shareholding_ratio": 1.15,
      "shares_held": 657000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 12.55,
      "shares_held": 7172000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行(信託口)",
      "shareholding_ratio": 6.32,
      "shares_held": 3614000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "JP MORGAN CHASE BANK 385632(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 2.59,
      "shares_held": 1480000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 2.06,
      "shares_held": 1180000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行(信託口９)",
      "shareholding_ratio": 1.63,
      "shares_held": 933000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "JPモルガン証券株式会社",
      "shareholding_ratio": 1.57,
      "shares_held": 898000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "株式会社日本カストディ銀行(信託口５)",
      "shareholding_ratio": 1.43,
      "shares_held": 817000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "株式会社日本カストディ銀行(信託口６)",
      "shareholding_ratio": 1.27,
      "shares_held": 725000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385781(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.25,
      "shares_held": 718000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "三井金属取引先持株会",
      "shareholding_ratio": 1.22,
      "shares_held": 698000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 18.21,
      "shares_held": 10402000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行(信託口)",
      "shareholding_ratio": 7.1,
      "shares_held": 4060000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "JP MORGAN CHASE BANK 385632(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 2.48,
      "shares_held": 1419000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 2.18,
      "shares_held": 1248000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "テックス・テクノロジー株式会社",
      "shareholding_ratio": 1.51,
      "shares_held": 865000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "STATE STREET BANK WEST CLIENT－TREATY 505234(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.34,
      "shares_held": 769000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "三井金属取引先持株会",
      "shareholding_ratio": 1.26,
      "shares_held": 725000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "DFA INTL SMALL CAP VALUE PORTFOLIO(常任代理人 シティバンク、エヌ・エイ東京支店)",
      "shareholding_ratio": 1.23,
      "shares_held": 707000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385781(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.22,
      "shares_held": 696000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "ゴールドマン・サックス証券株式会社 BNYM(常任代理人 株式会社三菱ＵＦＪ銀行)",
      "shareholding_ratio": 1.06,
      "shares_held": 607000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)",
      "shareholding_ratio": 19.32,
      "shares_held": 11039000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行(信託口)",
      "shareholding_ratio": 8.87,
      "shares_held": 5068000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "三井金属社員持株会",
      "shareholding_ratio": 2.34,
      "shares_held": 1337000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "JP MORGAN CHASE BANK 385632(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.68,
      "shares_held": 964000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "DFA INTL SMALL CAP VALUE PORTFOLIO(常任代理人 シティバンク、エヌ・エイ東京支店)",
      "shareholding_ratio": 1.66,
      "shares_held": 950000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "STATE STREET BANK WEST CLIENT－TREATY 505234(常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 1.37,
      "shares_held": 785000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "三井金属取引先持株会",
      "shareholding_ratio": 1.35,
      "shares_held": 771000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "NORTHERN TRUST GLOBAL SERVICES SE, LUXEMBOURG RELUDU RE: UCITS CLIENTS 15.315 PCT NON TREATY ACCOUNT(常任代理人 香港上海銀行東京支店 カストディ業務部)",
      "shareholding_ratio": 1.26,
      "shares_held": 724000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 9,
      "name": "三菱ＵＦＪモルガン・スタンレー証券株式会社",
      "shareholding_ratio": 1.22,
      "shares_held": 701000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 10,
      "name": "野村信託銀行株式会社(投信口)",
      "shareholding_ratio": 1.1,
      "shares_held": 630000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
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      "name": "大阪証券金融",
      "shareholding_ratio": 1.4,
      "shares_held": 6801000,
      "total_shares": 486000000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 1,
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      "shares_held": 63518000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "日本マスタートラスト信託銀行",
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      "shares_held": 49143000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "三井生命保険",
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      "shares_held": 9281000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
      "rank": 4,
      "name": "日本トラスティ・サービス信託銀行（信託口４）",
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      "shares_held": 8985000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 5,
      "name": "資産管理サービス信託銀行（信託Ｂ口）",
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      "shares_held": 8293000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 6,
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      "shares_held": 7976000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "State Street Bank and Trust Company 505103",
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      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "Pictet and Cie (Europe) S.A.",
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      "shares_held": 7598000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 9,
      "name": "Morgan Stanley & Co. International Limited",
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      "shares_held": 7523000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "The Chase Manhattan Bank, N.A. London",
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      "shares_held": 7203000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY09",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "日本トラスティ・サービス信託銀行（信託口）",
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      "shares_held": 30212000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "日本トラスティ・サービス信託銀行（信託口９）",
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      "shares_held": 25805000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 3,
      "name": "日本マスタートラスト信託銀行（信託口）",
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      "shares_held": 22517000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
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      "company_name_at_period": "三井金属鉱業",
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      "name": "三井金属社員持株会",
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      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
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      "source": "有価証券報告書（2010年3月期）"
    },
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      "source": "有価証券報告書（2010年3月期）"
    },
    {
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      "shares_held": 6613000,
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      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "三井金属鉱業",
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      "name": "STATE STREET BANK WEST CLIENT - TREATY",
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      "shares_held": 6470000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
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      "name": "CITIBANK HONG KONG S/A FUND 115",
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      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "三井金属鉱業",
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      "name": "日本トラスティ・サービス信託銀行（信託口４）",
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      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行(信託口)",
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      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
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      "name": "日本マスタートラスト信託銀行(信託口)",
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      "source": "有価証券報告書（2015年3月期）"
    },
    {
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      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
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      "shares_held": 23291000,
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      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
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      "name": "三井金属社員持株会",
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      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
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      "company_name_at_period": "三井金属鉱業",
      "rank": 6,
      "name": "CBNY - ORBIS FUNDS",
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      "shares_held": 9778000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
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      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
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      "name": "日本トラスティ・サービス信託銀行(信託口５)",
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      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 9,
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      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "三井金属鉱業",
      "rank": 10,
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      "shareholding_ratio": 1.02,
      "shares_held": 5852000,
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      "source": "有価証券報告書（2015年3月期）"
    }
  ]
}