{
  "commentary": [
    {
      "heading": null,
      "paragraphs": [
        "創業母体の北興化学工業が一貫して10%超で筆頭株主を維持し、積水化学・日揮・りそな銀行・野村殖産（旧野村電産）といった出資元の親密株主構造をFY15からFY24まで保ってきた。",
        "半導体・水処理需要拡大を背景にFY22以降は日本マスタートラスト信託銀行（信託口）が9%前後まで上昇し、外国法人等比率の上昇と合わせて機関投資家受け入れが進んでいる。"
      ]
    }
  ],
  "shareholders": [
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 10.84,
      "shares_held": 1100000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 2,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 5.91,
      "shares_held": 600000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "日揮株式会社",
      "shareholding_ratio": 5.91,
      "shares_held": 600000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "野村マイクロ・サイエンス従業員持株会",
      "shareholding_ratio": 3.62,
      "shares_held": 367789
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "BWT AKTIENGESELLSCHAFT",
      "shareholding_ratio": 3.52,
      "shares_held": 357000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 2.96,
      "shares_held": 300000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 2.96,
      "shares_held": 300000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.26,
      "shares_held": 229000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "千田 豊作",
      "shareholding_ratio": 2.07,
      "shares_held": 210000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "西華産業株式会社",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 11,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 12,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 10.84,
      "shares_held": 1100000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 5.91,
      "shares_held": 600000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "日揮株式会社",
      "shareholding_ratio": 5.91,
      "shares_held": 600000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "BWT AKTIENGESELLSCHAFT",
      "shareholding_ratio": 3.52,
      "shares_held": 357000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 2.96,
      "shares_held": 300000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 2.96,
      "shares_held": 300000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "野村マイクロ・サイエンス従業員持株会",
      "shareholding_ratio": 2.79,
      "shares_held": 282760
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "千田 豊作",
      "shareholding_ratio": 2.36,
      "shares_held": 240000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.26,
      "shares_held": 229000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "西華産業株式会社",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 11,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 12,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 1.97,
      "shares_held": 200000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 12.09,
      "shares_held": 1100000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 2,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 6.59,
      "shares_held": 600000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "日揮株式会社",
      "shareholding_ratio": 6.59,
      "shares_held": 600000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "BWT AKTIENGESELLSCHAFT",
      "shareholding_ratio": 3.92,
      "shares_held": 357000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 5,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.3,
      "shares_held": 300000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.3,
      "shares_held": 300000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "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": 3.01,
      "shares_held": 273700
    },
    {
      "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）",
      "shareholding_ratio": 2.7,
      "shares_held": 245700
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "千田豊作",
      "shareholding_ratio": 2.64,
      "shares_held": 240000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "野村マイクロ・サイエンス従業員持株会",
      "shareholding_ratio": 2.63,
      "shares_held": 239230
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 11,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.52,
      "shares_held": 229000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 12,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 2.2,
      "shares_held": 200000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 13,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 2.2,
      "shares_held": 200000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 12.06,
      "shares_held": 1100000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 2,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 6.58,
      "shares_held": 600000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "日揮株式会社",
      "shareholding_ratio": 6.58,
      "shares_held": 600000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "BWT AKTIENGESELLSCHAFT",
      "shareholding_ratio": 3.92,
      "shares_held": 357000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.29,
      "shares_held": 300000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.29,
      "shares_held": 300000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "千田豊作",
      "shareholding_ratio": 2.75,
      "shares_held": 251100
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.51,
      "shares_held": 229000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "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": 2.43,
      "shares_held": 222000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "野村マイクロ・サイエンス従業員持株会",
      "shareholding_ratio": 2.29,
      "shares_held": 208885
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 11,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 2.19,
      "shares_held": 200000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 12,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 2.19,
      "shares_held": 200000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 11.99,
      "shares_held": 1100000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 2,
      "name": "日揮ホールディングス株式会社",
      "shareholding_ratio": 6.54,
      "shares_held": 600000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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": 6.47,
      "shares_held": 593700
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 4,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 3.91,
      "shares_held": 359200
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "BWT AKTIENGESELLSCHAFT",
      "shareholding_ratio": 3.89,
      "shares_held": 357000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.27,
      "shares_held": 300000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.27,
      "shares_held": 300000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "千田豊作",
      "shareholding_ratio": 2.97,
      "shares_held": 272700
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.5,
      "shares_held": 229000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "野村マイクロ・サイエンス従業員持株会",
      "shareholding_ratio": 2.44,
      "shares_held": 223524
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 11,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 2.18,
      "shares_held": 200000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 12,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 2.18,
      "shares_held": 200000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 11.96,
      "shares_held": 1100000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "BWT HOLDING GMB H",
      "shareholding_ratio": 3.88,
      "shares_held": 357000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "KBC BANK NV - UCITS CLIENTS NON TREATY （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 3.41,
      "shares_held": 313900
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 3.23,
      "shares_held": 297200
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "千田豊作",
      "shareholding_ratio": 3.01,
      "shares_held": 277100
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.49,
      "shares_held": 229000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "ノムラ・ジャパン株式会社",
      "shareholding_ratio": 2.17,
      "shares_held": 200000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 11,
      "name": "株式会社ミクニ",
      "shareholding_ratio": 2.17,
      "shares_held": 200000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 11.95,
      "shares_held": 1100000
    },
    {
      "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": 6.74,
      "shares_held": 620300
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 6.56,
      "shares_held": 604100
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "BWT HOLDING GMB H",
      "shareholding_ratio": 3.88,
      "shares_held": 357000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "KBC BANK NV - UCITS CLIENTS NON TREATY （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 3.54,
      "shares_held": 325500
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.26,
      "shares_held": 300000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "千田豊作",
      "shareholding_ratio": 3.04,
      "shares_held": 279900
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "OP CORPORATION BANK PLC - OP - CLEAN WATER FUND （常任代理人 シティバンク、エヌ・エイ東京支店）",
      "shareholding_ratio": 2.49,
      "shares_held": 229285
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 11.82,
      "shares_held": 1100000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "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,
      "shares_held": 836800
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 4.63,
      "shares_held": 430400
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "KBC BANK NV - UCITS CLIENTS NON TREATY （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 4.01,
      "shares_held": 373000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "BWT HOLDING GMB H",
      "shareholding_ratio": 3.84,
      "shares_held": 357000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "株式会社りそな銀行",
      "shareholding_ratio": 3.22,
      "shares_held": 300000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "積水化学工業株式会社",
      "shareholding_ratio": 3.22,
      "shares_held": 300000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "野村殖産株式会社",
      "shareholding_ratio": 3.22,
      "shares_held": 300000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 9,
      "name": "千田豊作",
      "shareholding_ratio": 3.12,
      "shares_held": 290400
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 10,
      "name": "カツラギ工業株式会社",
      "shareholding_ratio": 2.46,
      "shares_held": 229000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 1,
      "name": "北興化学工業株式会社",
      "shareholding_ratio": 11.73,
      "shares_held": 1100000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "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": 5.71,
      "shares_held": 535900
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