The Association of South East Asian Nations (ASEAN), alongside the European Union, is the most well-known and successful regional organisation in the world today. It has grown from a declaration between five states focused on non-interference, to an international organisation that is a central hub for cooperation between ten states on matters as diverse as financial services, energy, investment, consumer protection and human rights. Since 2010, CIL has looked at the place of law in the construction of ASEAN.