https://zh.paraquee.com/post/controlling-shareholding-in-a-bank-insurance-company-or-securities-firm-is-defined-as-holding-at-least-a-percentage-of-the-total-number-of-issued-voting-shares-or-total-capital-of-a-bank-insurance-company-or-securities-firm-in-accordance-with-the-financial-holding-company-act