How to write the letter of giving up the qualification of winning the bid, and which units should be notified of this letter?

Rejection letter for what project? Bidding in different industries varies greatly. Generally speaking, it is enough to notify the bidding organizer, such as the bidding office and other institutions, and sometimes it needs to be submitted to the supervision institution separately. It should be noted that in order to avoid the damage to the timely operation of the project caused by the abandonment of the bid after winning the bid, all bidders need to pay a deposit before bidding. Once the bid is abandoned after winning the bid, this fee will not be recovered, which may cause bad records and affect the company's future bidding.