Regulations for Administration on Fixed Network Telecommunications Business Article 21

Upon receipt of the Network construction permit, an applicant shall construct its fixed telecommunications network according to construction plan within the effective period of a network construction permit as stated in its business plan. If the applicant fails to complete the construction before the effective period of the network construction permit, it shall state the reasons and apply to the competent authority for an extension prior to the lapse of the time limit. The extension shall not be longer than one year and can only be made once. In the case where the time limit has lapsed, the competent authority may abolish the establishment approval and forfeit the performance bond or notify the bank providing guarantee to honor its performance guarantee. If the applicant has obtained a license, the concession may forthwith be abolished accordingly.In the case where the application for an extension is due to a force majeure event, the extension may be made corresponding to the delay of such events and shall not be subject to the time limit set forth in the preceding Paragraph.In the case where an extension of the network construction permit according to the preceding two Paragraphs goes beyond the effective period of the Establishment Approval, the effective period of the approval for establishment shall forthwith be extended accordingly.
中文原文 固定通信業務管理規則第21條
申請人取得網路建設許可證後,應依其事業計畫書所定網路建設許可證有效期間之建設計畫建設網路。
其無法於網路建設許可證有效期間內建設完成者,應於期間屆滿前敘明理由向主管機關申請展延。
展期最長不得逾一年,並以一次為限,逾期主管機關得廢止其籌設同意,並不予退還履行保證金或由主管機關通知保證銀行履行保證責任,已取得執照者,得廢止其特許。
因不可抗力事故申請展延者,得按事故遲延期間申請展延,不受前項所定展期限制。
前二項網路建設許可證展期超過籌設同意書有效期間時,應一併辦理籌設同意書有效期間之展延。

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