the selling time of the tender documents should not be less than 5 working days (days). The time for preparing the prequalification application documents shall be no less than 1.4 days from the date when the prequalification documents are put on sale to the deadline when potential bidders submit the prequalification application documents.

Bidding is an indispensable project means in modern commercial society, and the time of bidding announcement and its restrictive provisions are very important for both tenderers and bidders. Mastering the time limit requirements in the tender announcement means mastering the whole direction of this tender project. Therefore, the author will briefly discuss the time and regulations of the tender announcement for everyone. Tender announcement refers to a document in which a tender unit or tenderer announces standards and conditions, puts forward prices and requirements and other project contents when conducting scientific research, technical research, engineering construction, cooperative operation or commodity trading, with a view to selecting contractors or contractors. Under the condition of market economy, bidding is conducive to promoting competition, strengthening horizontal economic ties and improving economic benefits. For the tenderee, choosing the good through the tender announcement can save the cost or investment, reduce the construction cost, shorten the construction period or delivery date, ensure the quality of the project or commodity project, and promote the improvement of economic benefits.

The relevant provisions on the time limit of tender announcement are as follows: 1. The time limit for pre-qualification announcement of tender announcement shall not be less than 5 working days. If the government procurement is conducted by inviting tenders, the bidding procurement unit shall publish the pre-qualification announcement in the government procurement information media designated by the financial department of the people's government at or above the provincial level, and announce the qualifications of bidders. The time limit for the pre-qualification announcement shall not be less than 7 working days. Bidders shall submit their qualification certificates according to the announcement requirements three working days before the end of the pre-qualification announcement period. The bidding procurement unit selects more than three bidders from the qualified bidders through random method, and sends them an invitation to bid. Ministry of Communications: The time for preparing the prequalification application documents shall be no less than 1.4 days from the date when the prequalification documents are put on sale to the deadline when potential bidders submit the prequalification application documents. 2, the tender documents for sale time should not be less than 5 working days (days). 3. The time from the start of selling the bidding documents to the deadline for bidding should not be less than 21 days for international bidding: generally speaking, it should not be less than 21 days for large-scale complex equipment or complete sets of equipment. The time from the start of selling to the deadline for bidding should not be less than 51 days. Ministry of Communications: expressway, first-class highways, extra-large bridges with complex technology and extra-long tunnels should not be less than 28 days for other highway projects. 4. The written clarification document of the bidding documents shall be revised at least 15 days before the deadline for bidding and bid opening of government procurement projects, and at least 3 days before the deadline for submission of bidding documents required by the bidding documents, and a correction notice shall be issued in writing and on the government procurement information release media. 5. The survey site is generally arranged 1-2 days before the tender preparation meeting, which can be arranged within 28 days after the tender documents are issued 7 days. 6. The extraction time of experts is less than 48 hours from the time of bid opening. Experts from other provinces are less than 72 hours. In principle, it takes half a day or a day for government procurement. Special circumstances ≤ 2 days are not specified in the project bidding. 7. Time for submitting the bid bond: submit it to the tenderer together with the bid documents. 8. The bid opening time is at the same time as the bidding deadline. 9. If the bid evaluation committee determines the winning bidder to submit a written bid evaluation report, the tenderee shall, at the latest, 31 working days before the end date of bid validity (instead of calendar days); Within 5 working days after receiving the bid evaluation report for government procurement of goods and services. 11. Generally, the bid validity period is 61-91 days (which is not specified by laws and regulations) and 121 days for large-scale complex equipment (because it takes a certain time from the bid opening to the issuance of the bid-winning notice, and the signing of the contract is within 31 days from the date of issuance of the bid-winning notice). 11, the validity of the bid bond project bidding shall exceed the validity of the bid for 31 days. The validity period of bidding for goods is the same as that of bidding. 12. Notice China International Bidding Network for filing (international bidding) within 2 days after bid opening. 13. Bid Evaluation Report The government procurement agency shall send the bid evaluation report to the purchaser within 5 working days after the bid evaluation. The purchaser shall, within 5 working days after receiving the bid evaluation report, determine the winning suppliers according to the order of the candidate suppliers recommended in the bid evaluation report; You can also authorize the bid evaluation committee to directly determine the winning supplier in advance. For other projects that must be subject to tender according to law, the tenderer shall submit a written report on the bidding situation to the relevant administrative supervision departments within 15 days from the date of determining the winning bidder. 14. The bid-winning publicity time is not less than 2 days for project bidding and not less than 7 days for international bidding. 15. Time for issuing the bid-winning notice: Project bidding: failure to notify the violation within 5 days after the end of the publicity period and reporting to the construction administrative department; International bidding: the publicity period ends; Government procurement bidding: it can be issued after the bid is determined. 16. After determining the winning bidder, the tenderee shall submit the report on bidding to the relevant government departments within 15 days. 17. Time to refund the bid bond Project bidding: international bidding within 5 working days after signing the contract (unsuccessful): if the bid winner fails to win the contract within 5 working days after issuing the bid-winning notice, the bid winner will pay the performance bond and the bidding service fee after signing the contract; if the bid winner fails to win the contract within 5 working days after issuing the bid-winning notice, the loan interest rate will rise by 21%. 18. Time Limit for Complaining about Bidding Control Price If the bidder believes that the bidding control price announced by the tenderer has not been compiled in accordance with the Code for Valuation of Bill of Quantities of Construction Projects, it shall complain to the bidding supervision institution or (and) the project cost management institution 5 days before the bid opening. 19. Project bidding: If the bidder needs to question after checking the bill of quantities provided in the bidding documents, it should submit the government procurement to the tenderer in writing within 7 days after receiving the bidding documents; the supplier can ask the purchaser in writing within 7 working days after knowing or should know that its rights and interests are damaged. The purchaser shall make a reply to the international bidding within 7 working days after receiving the written query from the supplier: if the bidder has any objection to the bid evaluation result, he can raise a query to the corresponding competent department online during the publicity period. The bidder shall first fill in the Query Form of Bid Evaluation Results online in the bidding website during the publicity period, and the Query Form of Bid Evaluation Results signed or signed by the legal representative of the bidder or the authorized person of the legal representative and relevant materials shall be effective only after the publicity period and within 3 days after the end. Bidders may also submit written objections to the tendering agency during the publicity period of bid evaluation results. After receiving the written objections from bidders, the tendering agency shall give a written or oral reply before the end of the publicity period. If the bidder has not received a reply from the tendering agency or still has objections to the reply result, it may question the corresponding competent department online during the publicity period. 21. Return of performance guarantee to the Employer shall return the performance guarantee to the Contractor within 28 days after the project acceptance certificate is issued. 21. Concluding a Written Contract The tenderer and the winning bidder shall conclude a written contract within 31 days from the date of issuance of the bid-winning notice. 22. Contract Filing Within 7 working days from the date of signing the procurement contract for government procurement projects, the purchaser shall submit a copy of the contract to the government procurement supervision and administration department at the same level and relevant departments for filing the project bidding: the winning bidder's contract shall be filed with the administrative department of the government at or above the county level where the project is located within 7 days from the date of signing. 23. Generally, the winning bidder shall be determined within 15 days in the process of re-tendering and bid evaluation. 24. The retention period of government procurement documents is at least 1.5 years from the date of the end of procurement. Based on the above-mentioned series of detailed legal provisions, I think everyone has a general grasp of the time of tender announcement. Among them, in addition to the project content and funds of the tender unit, what is particularly worthy of bidders' attention is the time limit of the tender announcement. Finally, the author still needs to remind everyone that bidding and tendering must be legally announced and legally competed. Don't be opportunistic, because of small losses.