The U.S. Justice Department said on Friday it will not appeal the dismissal of its indictment of Norwegian shipping group Stolt-Nielsen in a price fixing case.

Earlier this month, a Pennsylvania court threw out a criminal indictment against the company and two of its executives.

Judge Bruce Kauffman of the U.S. District Court for the Eastern District of Pennsylvania, who tossed out the indictment, said Stolt-Nielsen had cooperated with the Justice Department to dismantle illegal collusion among three long-haul carriers in exchange for a promised amnesty for prosecution.