[Bitcoin Miner MARA Acquires 64% Stake in Exaion to Enter AI Sector] Bitcoin mining company MARA has completed the acquisition of a 64% stake in French computing infrastructure operator Exaion, officially entering the artificial intelligence and cloud services sector. French energy company EDF will retain a minority stake and continue as a client, while telecom entrepreneur Xavier Niel's investment vehicle NJJ Capital will acquire a 10% stake in MARA's French subsidiary.