Milan, December 27 - Italian infrastructure fund F2i is the only bidder to have made an offer by Thursday's deadline for the 14.5% stake in Sea, the operator of Milan's Malpensa and Linate airports, being sold by the Milan provincial government. Sea was delisted in recent weeks from the Italian stock market. The F2i und already purchased 29.8% of Sea last year from the city of Milan. At the time, F2i beat off a competing offer from Indian group SREI. State holding Cassa Depositi and Prestiti owns a stake in F2i.