Company Act Article 369-9
I.Where a company and another company have made investment in each other's company to the extent that one third or more of the total number of the voting shares or the total amount of the capital stock of both companies are held or contributed by each other, these two companies are defined as mutual investment companies.II.Where both mutual companies are holding one half or more of the total number of the voting shares or of the total amount of the equity capital of each other's company, or having direct or indirect control over the management of the personnel, financial of business operations of each other's company, they shall have the status of the controlling company as well as the subordinate company to each other's company.
中文原文 公司法第369-9條
公司與他公司相互投資各達對方有表決權之股份總數或資本總額三分之一以上者，為相互投資公司。
相互投資公司各持有對方已發行有表決權之股份總數或資本總額超過半數者，或互可直接或間接控制對方之人事、財務或業務經營者，互為控制公司與從屬公司。
相互投資公司各持有對方已發行有表決權之股份總數或資本總額超過半數者，或互可直接或間接控制對方之人事、財務或業務經營者，互為控制公司與從屬公司。