Enforcement Rules of the Labor Pension Act Article 26

If an employer has not received the labor pension statements distributed by the Bureau by the fifteenth day of the month, the Bureau shall be notified to resend replacement statements.
中文原文 勞工退休金條例施行細則第26條
雇主於每月十五日前尚未收到勞保局上個月應寄發之勞工退休金繳款單時,應通知勞保局補發。

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