Port of Piraeus permanent navy base for the mighty Athenian fleet. However, in the late 4th century BC began a long period of decline for Piraeus; the harbours were only occasionally used for the Byzantine fleet and the city was mostly deserted throughout the Ottoman occupation of Greece. In 2002 PPA and the Greek government signed a concession agreement. The Greek government leased the port zone lands, buildings and facilities of Piraeus Port to PPA for 40 years. In 2008 the duration of the concession agreement was modified from 40 to 50 years. With this modification the lease is ending in 2052. Since
Port of Piraeus the Greek government-debt crisis started in late 2009 the Greek government planned to privatize several state-owned assets. These assets are believed to be worth around 50 billion euros. One of these assets is the port of Piraeus. In October 2009 Greece leased docks 2 and 3 from PPA to the China Ocean Shipping (Group) Company (in short: COSCO) for a 35-year-period. For its presence at the port COSCO is paying 100 million euros every year. Terminal 1 is operated by PPA S.A. and has a capacity of nearly 1 million TEUs. Terminal 2's capacity is 3 million TEUs and is