Government Procurement Act Article 57

Where negotiations are adopted according to the provisions of the preceding two Articles, the entity shall conduct the process in accordance with the following principles:1. The procedures and contents of tender opening, tenders, and tender evaluation shall be kept confidential.2. No tenderers meeting the requirements set forth in the tender documentation shall be discriminated during the negotiations. If necessary, video or audio recordings shall be used for evidence purpose.3. Only the content of those items that are specified as negotiable in the tender documentation may be subject to negotiation.4. Where the negotiable items referred to in the preceding subparagraph is amended, all tenderers permitted to participate shall be informed of such amendment in writing.5. Upon completion of negotiation, tenderers referred to in the preceding subparagraph shall be given an opportunity to modify their tenders and re-submit their tenders within a time-limit according to the negotiation.
中文原文 政府採購法第57條
機關依前二條之規定採行協商措施者,應依下列原則辦理︰一、開標、投標、審標程序及內容均應予保密。
二、協商時應平等對待所有合於招標文件規定之投標廠商,必要時並錄影或錄音存證。
三、原招標文件已標示得更改項目之內容,始得納入協商。
四、前款得更改之項目變更時,應以書面通知所有得參與協商之廠商。
五、協商結束後,應予前款廠商依據協商結果,於一定期間內修改投標文件重行遞送之機會。

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