The biggest port in Greece - Piraeus - has been granted too much state aid in the form of, for example tax exemptions. Specifically this concerns the two companies: PCT - Piraeus Container Terminal SA, and its parent company Cosco Pacific Limited, which have been granted financial help. The government aid has meant, that the competition was distorted in Greece and for this reason, the money must be paid back to the state, according to the EU-Commission's decision Monday.

"The companies now need to pay back the advantage received to the Greek state. To avoid further distortions of competition, the Greek authorities are also expected to cease granting these advantages to PCT from now on," the EU-Commission writes in the decision.