TAN 

Hsien-Li

Dr Tan Hsien-Li is Associate Professor at NUS Law School where she teaches ASEAN Law and Policy, Constitutional and Administrative Law, and Singapore Law in Context. She is Co-Editor of the Asian Journal of International Law and Co-Series Editor of the ASEAN Integration Through Law Book Series published by Cambridge University Press. Tan’s cross-disciplinary research lies at the intersection of international law, international relations, and political economy. She is currently a team lead in a major grant project on Regional Resilience in ASEAN funded by the Singapore Social Science Research Council where she investigates Geoeconomic Shifts (trade, tariffs, and supply chains) and how the Global South use and reshape the international legal order. Tan has authored/co-authored 3 books published by Cambridge University Press and published in leading journals such as the European Journal of International Law, Michigan Journal of International Law, and Human Rights Law Review.

Tan’s work has substantive policy and strategic impact. She was Co-Head of the ASEAN Law and Policy Programme at the NUS Centre for International Law for a decade until end 2025. She frequently engages with agencies from ASEAN Member States and its Dialogue Partners. Tan is also a well-regarded pedagogue by her tertiary-level and public officer students. For her contributions to ASEAN Community-building, Dr Tan was awarded the Pingat Kepujian (Commendation Medal) in 2023.  She has held fellowships at the European University Institute in Florence, and NYU Law School. She was previously the AsianSIL Research Fellow at the NUS Law School and the Ushiba Memorial ASEAN Fellow in Tokyo

• ASEAN Law and Policy – comparative regional integration; governance and institutions; legalization processes; human rights
• Geoeconomic, Geostrategic, Geopolitical Shifts and the Global South’s Usage of International Law – small power legal agency, soft lawmaking, comprehensive and strategic partnerships, supply chain reconfigurations, multilateral digital partnerships.
• International human rights law
• Public international law