Justin Tan


Justin advises a wide range of international commercial arbitration and disputes, investment treaty arbitration and business and human rights.

He has participated in arbitrations under the rules of various institutions (including ICC, LCIA and ICSID). Before qualifying as a solicitor, Justin worked as a legal research assistant at Oxford University, researching for two academic monographs on omissions liability.

He has published articles in leading journals, including multiple articles in the Lloyd’s Maritime and Commercial Law Quarterly. He served on the editorial board of the ninth edition of the firm's Business and Human Rights Review.


Pro bono

Advising a cancer charity on a commercial dispute with their website provider.

Mentoring minority group lawyers through the firm’s REACH mentorship programme.

Published Work

  • Mawkin S. and Tan J. (2022) "Who is bound by an arbitral award?", Lloyd's Maritime and Commercial Law Quarterly (2022)
  • Al-Sibaie J. and Tan J. (2022), "Demurrage and the meaning of words", Lloyd's Maritime and Commercial Law Quarterly (2022)

Speaking Engagements

  • Guest Speaker, "Business and Human Rights: Primer on Principles and Intersections”, London School of Economics, 2024



England and Wales, 2023


BA Jurisprudence, Oxford University, 2020 (First Class Honours, Martin Wronker Prize, Peter Carter Prize)

LLM, LPC, BPP Law School, 2021 (Distinction)

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.