Regulations for the Management of Telecommunications Engineering Enterprises Article 12

If any content in the license registration is to be revised, an application for revision shall be submitted to the competent authority within 30 days after the date of such revision, with documents stated in Paragraph 1, Article 9, for a replacement license.If the registration license is lost or damaged, the telecommunication engineering enterprise shall apply to the competent authority for re-issuance of license registration, with documents stated in Paragraph 1, Article 9.The effective period of the re-issued or replaced license, according to Paragraph 1 or 2 of this Article, shall be the same as the original license.
中文原文 電信工程業管理規則第12條
登記執照登載事項變更者,應於事實發生日起三十日內,應檢附第九條第一項所定文件向主管機關申請換發。
電信工程業者所領登記執照遺失或破損者,應檢附第九條第一項所定文件向主管機關申請補發。
依第一項及第二項規定換發或補發之登記執照,其有效期間與原登記執照同。

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