In 1970, Brambles entered the waste disposal market with the purchase of the Australian subsidiary of Purle Brothers Holdings. In 1972, Brambles entered the armoured car market in partnership with Brink's. In 1972, Brambles purchased the Port Jackson & Manly Steamship Company. Brambles main interest in the business, was a 50% shareholding in Tidewater Port Jackson Marine, which operated six platform supply vessels. Following a threat by Brambles to withdraw the loss-making Manly ferry service, the Public Transport Commission took over the service in December 1974. In 1975, Brambles formed an 80:20 joint venture with UK company Guest Keen & Nettlefold (GKN) to bring CHEP to the United Kingdom.