Petrobras America claimed that it paid excessive charter fees for a drill ship built by Samsung Heavy, Samsung said in a regulatory filing. Samsung delivered the vessel to U.S. shipowner Pride Global Limited in 2011.

Samsung said it was not involved in the charter agreement signed between Petrobras America and Pride Global Limited, saying it will actively counter the legal dispute.

(Reporting by Hayoung Choi, Hyunjoo Jin; Editing by Kim Coghill)