This is my clarification for 3 projects as your requirement in part of cost saving.
PIR got the first quotation and already negotiated with supplier which we are very fight until getting final price in table as below.
Therefore, I’d like to ask you that did you report the first quote into your MAR for information evident or not?
And cost saving 10% as you need to increase from the final price. It seems that PIR don’t any negotiating for the project.
I think that item no.1 , no.3 are quite reasonable if you consider from first price. Because of the price is closed according your specification as you already accepted them. But item no.2, PIR will go to negotiate with supplier again if you don’t any changing specification.