This chapter analyses the international science collaboration between scientists in Chulalongkorn University (CU) in Bangkok and scientists and managers from Kawasaki Heavy Industry (KHI), Japan. The Chapter argues, first, that the integrity of national regulations is violated through international science collaborations, including by the governments whose regulations are violated. As there is no credible regulatory mandate on a global level, such violations receive little attention. Second, in contrast with notions of science collaboration that view collaboration as a bond between two or more partners to attain a shared goal by pooling resources, the chapter’s examination of the collaborative project shows that its goals are shared in different, often incompatible ways. And, third, observing how regulation in international science collaboration is treated as a form of ‘regulatory capital’, the chapter argues that international collaboration and competition form part of the same process. This study of regulatory capital explains why the examination of science collaborations does not just pertain to exchanges of scientific know-how and technological expertise; it also requires the investigation of the ways in which socio-economic, political and regulatory conditions enable available resources to be used to satisfy a range of goals, many of which are mutually incompatible.