There are several efforts underway at multiple levels—national, bilateral, regional and multilateral—aimed at reforming the IIA regime. These reform efforts are operating in parallel to developments in other areas of international investment governance, some of which have advanced quickly over the past year, including the structured discussions on investment facilitation at the WTO, as well as efforts in the UN context to craft a binding treaty on business and human rights. This year’s UNCTAD High-Level IIA Conference assessed the progress made to date since launching UNCTAD’s 10 Options for Phase 2 of IIA Reform, looking at trends across multiple areas of international investment governance, as well as across world regions. This ITN Insight summarizes the key takeaways from the 2019 event and considerations for Phase 2 going forward.