Liquimar Tankers Management Services has been fined in the US over an attempt to conceal pollution from a tanker in 2019.
And new evidence was presented in court showing how senior shore-side staff provided fake certificates regarding safety and environmental compliance.
The Greek company had already been convicted in 2019 by a federal jury in Wilmington, Delaware, along with shipowning affiliate Evridiki Navigation and chief engineer Nikolaos Vastardis.