Regulations for Electronic Procurement Article 3
Where entities and suppliers engage in procurement by using electronic means (hereinafter referred to as “electronic procurement”), any required signature or seal shall be provided through the use of a digital signature.
中文原文 電子採購作業辦法第3條
機關及廠商以電子化方式辦理採購（以下簡稱電子採購），依規定應簽名或蓋章者，應以數位簽章為之。