Around 40,000 documents are being submitted by salmon farming giant Leroy as part of a class-action lawsuit alleging the company and its rivals conspired to fix prices in the US market.

Matthew Bachrack, an attorney representing Leroy USA in the case, told a US district court judge during a conference last Thursday the "Norwegian custodial production of around 40,000 documents" will be submitted to plaintiffs as well as the court by the end of this month.

Despite the large onslaught of documentation necessary to move the proceedings into the deposition phase, Backrack told the judge "things are moving forward in a productive way."