Regulations Governing the Administration of Shareholder Services of Public Companies Article 47

Where the stocks of persons referred to in Article 45, paragraph 1 are pledged, the pledgor shall immediately notify the company; within five days, the company shall transmit such information via the information reporting website designated by this Commission; after transmission has been completed, public notice shall be deemed to have been duly completed.
中文原文 公開發行股票公司股務處理準則第47條
第四十五條第一項所列之人,其本人所持有之股票,經設定質權者,出質人應即通知公司;公司應於五日內將其出質情形,向本會指定之資訊申報網站進行傳輸,於完成傳輸後,即視為已依規定完成公告申報;解除質權者亦同。

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