The Purpose Of This Tender To Contract The Provision Of Conservation Services And/Or Reform Of The Facilities Of The Catalan Institute Of Chemical Research Distributed In The Following Lots: Lot No. 1: Electricity Work. Lot No. 2: Carpentry, Closures And Locksmiths Associated With Metal. Lot No. 3: Work On Gas Lines Installations. These Services Were Already Tendered At Exp 11-2023, But The Estimated Value Of It Was Made Down And The Reality Of The Work Indicates That They Will Be Superior, So A New Tender Is Proceeded.