Economic cooperation in East Asia has progressed in its own distinct way, and the conclusion of the Regional Comprehensive Economic Partnership (RCEP) in 2019 is a huge achievement of strategic significance that pushes back against threats to the multilateral system. RCEP is the world’s largest regional pact in terms of GDP, trade volume, foreign direct investment and population. This issue of East Asia Forum Quarterly looks at RCEP going forward, the ways Asia’s largest economies are embracing the deal, the supply chain and manufacturing trends that are emerging and the RCEP framework for dealing with issues beyond those already negotiated.