The contractor's financial proposal is specified in Clause 1, Article 9 Bidding Law 2023 as follows:

Process and store documents during the process of selecting contractors and investors

1. The contractor's financial proposal that does not pass the technical evaluation step will be returned to the contractor in its original state within the following deadline:

a) For bidding packages providing consulting services: within 10 days from the date of signing the contract with the selected contractor;

b) For bidding packages providing non-consulting services, goods procurement, construction and installation, mixed use, a one-stage, two-envelope method is applied: done when returning or releasing the bid security of The contractor is not selected or when the contractor selection results are posted.

2. Financial proposals of investors that do not pass the technical evaluation step will be returned to the investor in its original state when returning or releasing the bid security of the investor who is not selected. or when posting investor selection results.

...

Thus, according to regulations, in case the contractor's financial proposal does not pass the technical evaluation step, it will be returned to the contractor in its original state within the following deadline:

(1) For bidding packages providing consulting services: within 10 days from the date of signing the contract with the selected contractor;

(2) For bidding packages providing non-consulting services, procurement of goods, construction and installation, mixed use, a one-stage two-envelope method is applied: done when returning or releasing bid security of the contractor not selected or when posting the contractor selection results.