Legal subjectivity:

What to do if Party A fails to sign the contract after winning the bid: For a bidder who voluntarily gives up the bid, the bidder shall have his bid deposit confiscated by the tenderer, and compensation shall be paid for the losses caused. You cannot give up the winning bid casually after winning the bid. Unless there are special circumstances, the winning bidder will need to bear corresponding legal liability if he gives up the winning bid. Therefore, the winning bidder cannot abandon the bid. Legal objectivity:

"Tendering and Bidding Law"

Article 45

After the winning bidder is determined, the tenderer shall issue a bid winning notice to the winning bidder, At the same time, all unsuccessful bidders will be notified of the winning bid results.

The bid winning notice shall have legal effect on the tenderer and the winning bidder. After the bid winning notice is issued, if the tenderer changes the bid winning result, or if the winning bidder abandons the winning project, he shall bear legal liability in accordance with the law.

"Tendering and Bidding Law"

Article 46

The tenderer and the winning bidder shall, within thirty days from the date of issuance of the notice of winning the bid, in accordance with the The bidding documents and the bid documents of the winning bidder establish a written contract. The tenderer and the winning bidder shall not enter into other agreements that deviate from the substantive content of the contract.

If the bidding documents require the winning bidder to submit a performance bond, the winning bidder shall submit it.