The title is usually the letter of abandonment
To the position of the need to write the name of the project owner unit
The body is usually as follows
My full name: **** company, the company has been involved in the project of the **, due to the ** reason, the decision to abandon the bid after study.
Hereby declare.
Unit name: **Company
*Year*Month*
If you don't want to write the reason then you can also not write it
Need to be stamped