Negotiated Procedure Pursuant To Art. 50 Paragraph 1 Letter. E) Of The Legislative Decree. N. 36/2023, For The Award, On 2 Tender Lots, Of The Supply Of Chemical Additives To Be Used In The Purification Plants And In The Water Networks Managed By S.Ec.Am. Spa. Period 01.05.2026 – 30.04.2027