The Purpose Of The Supply Of This Chemical Product Or Reagent Is To Provide The Mas De Barberans Plant With The Raw Materials Necessary For The Correct Functioning Of The Leachate Treatment, Which Is Divided Into Different Stages, Biological, Ultrafiltration, Sludge Dehydration , Reverse Osmosis And Evaporation, And Where All The Parameters Must Be Controlled And With Different Objectives For Each Phase, Which Imply Having To Have This Type Of Product. Therefore, This Contract Is Absolutely Necessary To Be Able To Operate The Leachate Treatment Plant, Which Usually Works Throughout The Year 24 Hours A Day. Therefore, It Is Necessary To Always Have This Product Within Reach To Avoid Undue Stops And Stoppages That Would Hinder The Processes, Which Would Mean Greater Economic Costs And Increase The Accumulation Of Stored Leachate, Which Means That It Is Necessary To Ensure That The Storage Of This Product Is Always Higher Than 30%. This Contract Is An Essential Necessity To Be Able To Have This Product For The Correct Operation Of The Leachate Treatment Plant, And To Avoid The Undue Shutdown Of This Installation Due To A Lack Of Raw Materials.