Some of Greece’s biggest harbour tug operators received financial penalties for breaching competition laws.

Nine entities were fined €4.36m ($4.26m) in total, the Hellenic Competition Commission (HCC) said in a statement.

The companies in question “made a clear and unequivocal acknowledgement of participation in and liability for horizontal agreements and the subsequent breach of competition law, the HCC said.

That acknowledgement made the firms eligible for the commission’s settlement procedure, which allows for a 15% discount on fines.