This article analyses a campaign led by the Australian Council of Trade Unions, against James Hardie Industries Limited, concerning their responsibility and liability to fully fund asbestos compensation claims. Across the Anglo-American world, trade unions are faced with increasingly hostile legislative and political environments and a declining membership base. In addition, the globalization of capital increasingly allows for organizational mobility and reduced commitment to specific communities or workers. These factors can have a significant impact on union effectiveness, particularly due to their national focus. In response, the concepts of corporate campaigning and social movement unionism have increasingly been used by unions as a strategy to influence and contest corporate policy decisions. This high profile case illustrates the critical role that corporate campaigning can play in ensuring that the mobility of capital does not override justice in a global economy.