Enforcement Rules of the Trademark Act Article 26

Where a correction of errors in the particulars of an application for trademark registration is requested pursuant to Article 25 of the Act, the Registrar Office may require, if necessary, the applicant to furnish relevant proof.
中文原文 商標法施行細則第26條
依本法第二十五條規定申請商標註冊申請事項之更正,商標專責機關認有查證之必要時,得要求申請人檢附相關證據。

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