Core Viewpoint - The class-action lawsuit against major containerboard manufacturers alleges price-fixing and market manipulation, claiming a coordinated effort to inflate prices by approximately 30% since late 2020 [2][3][4]. Group 1: Lawsuit Details - The lawsuit was initiated by Artuso Pastry Foods Corp. in July 2025, naming eight major containerboard manufacturers as defendants [1]. - Graphic Packaging International was voluntarily dismissed from the case on 25 September 2025, leaving seven defendants accused of conspiring to raise prices [2][5]. - The plaintiffs allege that the defendants engaged in coordinated price increases through seven hikes from November 2020 to the present, despite weak demand [3]. Group 2: Antitrust Allegations - The lawsuit claims that the actions of the defendants constitute a violation of U.S. antitrust laws, suggesting they operated as a "cartel" to manipulate market prices [4]. - Over 85% of the U.S. containerboard market is reportedly controlled by a small number of companies, which may facilitate collusive behavior [4]. Group 3: Industry Response and Legal Proceedings - Most defendants have not publicly commented on the litigation, but Georgia-Pacific has denied the claims, asserting they are without merit [5]. - The case is set to proceed against the remaining companies, with a status update required by 17 December 2025 [6]. - Plaintiffs are seeking treble damages, which could lead to settlements or increased scrutiny of pricing practices in the sector [6]. Group 4: Market Implications - The ongoing litigation has significant implications for the broader containerboard market, potentially affecting pricing and market stability [7].