Invitation To Negotiation Without Prior Publication Via News For The Supply Of Group A: Building Materials, Group B: Aggregate Materials And Group C: Ready-Made Concrete By The Municipality Of Lefkada Total Budget €269,916.28 Including Vat 24%. Each Competitor Can Participate In The Tender By Submitting Offer In One Section Or Both Of The Indicative Budget, But For The Totality Of Items And Quantities Of Each Of Each Group. The Duration Of The Contract Is Set At Twelve Months From The Signing Of The Contract(S).