Object: Electronic Auction - Hiring Of A Specialized Company For The Provision Of Statistical And Geostatistic Services For Reevaluation Of The Mineral Resources Of The Engenho Mine Based On All Probing Campaigns Performed And Holes Of Blasthole And Due Diligence In Part Of The Lagoa Real Project Assessment Report (2021) To Meet Ura Demands, To Be Executed In The Nuclear Industries Of Brazil S/A, Located In Caetité/Ba, In Accordance With Term Reference.