The name and address of the construction site and the specific contract/agreement number.
It is a unified document (form № 0322001) used for financial settlements between a contractor and a customer.
Унифицированная форма № КС-3 - бланк и образец
You can download a blank template directly from Kub-24 or browse multiple formats on Dirmagazina .
You can download the form, which is the official "Statement of Cost of Performed Works and Expenses" used in construction, via the following resources: Download Links (Word & Excel)
Often preferred for calculations, Excel versions are available at Stroydoc-ABV . PDF: Clean printable versions can be found at BuildingClub . Key Information About Form KS-3
Details for the Investor, Customer, and Contractor (names, addresses, OKPO codes).