Legal analysis: the publicity period of the winning bid result shall not be less than three days. Since the bidding activities are conducted in accordance with the law and a bid evaluation report is produced, the tenderee shall publicize the successful candidates (no more than three candidates) within three days as soon as possible, and the publicity period shall be greater than or equal to three days. Relevant stakeholders should pay attention to the relevant information of the winning bid in time. If there is any objection to the bid evaluation results of the bidding activities, it should be put forward within the publicity period of the bidding results (preferably within three days after the announcement of winning the bid), and the tenderer will give a reply within three days after receiving the objection. Neither "Government Procurement Law" nor "Regulations on the Implementation of Government Procurement Law" stipulates how long the bid-winning announcement should be publicized. The Regulations for the Implementation of the Government Procurement Law only stipulates that the purchaser or procurement agency shall issue the bid-winning notice within 2 working days from the date of determining the supplier, but it does not clearly stipulate how long it should be publicized.
Legal basis: Article 54 of the Regulations for the Implementation of the Bidding Law of People's Republic of China (PRC), the tenderer shall publicize the successful candidate within 3 days from the date of receiving the bid evaluation report, and the publicity period shall not be less than 3 days. Bidders or other interested parties who have objections to the bid evaluation results of projects that must be subject to tender according to law shall raise them within the publicity period of the successful candidate. The tenderer shall make a reply within 3 days from the date of receiving the objection; Before giving a reply, the tendering and bidding activities shall be suspended.