Act governing the administration of professional engineering consulting firms Article 6

In a professional engineering consulting firm, the directors, shareholders taking charge of business operation or representing the firm shall include one-third minimum as the practicing professional engineers within the firm’s registered business scope except a firm staffed with twenty practicing professional engineers minimum or a firm listed on either the TSE or OTC.
中文原文 工程技術顧問公司管理條例第6條
工程技術顧問公司之董事、執行業務或代表公司之股東,應有三分之一以上為該公司營業範圍之執業技師。
但其所置執業技師達二十人以上,或股票公開發行上市、上櫃公司,不在此限。

English translation for reference only; the Chinese text prevails. Not legal advice.