At least 4500 businesses were affected by the price fixing and market rigging conduct of cardboard box manufacturers Amcor and Visy. Amcor obtained immunity from prosecution from the ACCC, in return for giving evidence against Visy in 2004. Visy was prosecuted by the Australian Competition and Consumer Commission and fined $36m in November 2007. The judge imposing the fine described it as the worst cartel conduct ever prosecuted in Australia.
 
Maurice Blackburn was not supported by an external litigation funder in this matter and has borne all risk and costs. The cartel victims have not paid for joining this action.