Enforcement Rules of the Government Procurement Act Article 49

For a tender opening under open or selective tendering procedures, the tender documentation may leave the time and place of tender opening unspecified in any one of the following circumstances:1. where it is a qualification review for establishing a permanent list of qualified suppliers under selective tendering procedures pursuant to Article 21 of the Act;2. where it is a multi-step opening of tenders pursuant to Article 42 of the Act, and the time and place of tender opening of the subsequent step are uncertain;3. where the procedures and contents of tender opening shall be kept confidential pursuant to subparagraph 1 of Article 57 of the Act;4. where a procurement is conducted pursuant to subparagraph 2 of paragraph 1 of Article 104 of the Act; and5. other circumstances as prescribed by the responsible entity.Under the circumstance of subparagraph 2 of the preceding paragraph, the entity shall notify eligible tenderers of a prior step of the time and place of tender opening in the subsequent step.Article 49-1The date of tender opening specified in the tender documentation for open tendering, selective tendering and price competition under limited tendering procedures shall be the expiry date of the time-limit or the business day following that date. This provision does not apply to the tender opening in the second or the subsequent steps provided that it is a multi-step opening of tenders.
中文原文 政府採購法施行細則第49條
公開招標及選擇性招標之開標,有下列情形之一者,招標文件得免標示開標之時間及地點:
一、依本法第二十一條規定辦理選擇性招標之資格審查,供建立合格廠商名單。
二、依本法第四十二條規定採分段開標,後續階段開標之時間及地點無法預先標示。
三、依本法第五十七條第一款規定,開標程序及內容應予保密。
四、依本法第一百零四條第一項第二款規定辦理之採購。
五、其他經主管機關認定者。
前項第二款之情形,後續階段開標之時間及地點,由機關另行通知前一階段合格廠商。

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