Regulations for Implementing Labor-Management Meeting Article 11

After the election and designation of labor-management meeting representatives are completed, the business entity shall send the name list of representatives and alternate representatives for the labor side to the local competent authority for reference within 15 days; the same procedure shall apply when replacement, by-election, re-designation, or reduction of the number of representatives occurs.
中文原文 勞資會議實施辦法第11條
勞資會議代表選派完成後,事業單位應將勞資會議代表及勞方代表候補名單於十五日內報請當地主管機關備查;遞補、補選、改派或調減時,亦同。

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