The European Commission has alleged that Norwegian salmon producers Cermaq, Grieg Seafood, Bremnes, Leroy, Mowi and SalMar have violated EU antitrust laws by colluding to manipulate competition in the EU market for spot sales of Norwegian farmed Atlantic salmon. The accused companies have refuted these claims, denying any anti-competitive behavior or antitrust infringements. Mowi has challenged the Commission's initial findings, while Grieg Seafood has declared its intention to utilize all its defense rights.