Enforcement Rules of the Administrative Execution Act Article 33

If the circumstances of the third to fifth subparagraphs of the first paragraph of Article 6 of this Act occur when the commissioned third person performs the obligation, the commissioned third person shall notify the enforcement authority.
中文原文 行政執行法施行細則第33條
受委託之第三人於代履行時,有本法第六條第一項第三款至第五款規定情事者,應即通知執行機關。

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