Managing Partner of Singapore Office, Leader of International Arbitration (Asia)

Yu-Jin Tay

Cross-Border Investigations & Enforcement, International Litigation & Dispute Settlement, Litigation & Dispute Resolution

"great at resolving complex problems and explaining them simply” (2017)

"a specialist among specialists" (2016)

"noteworthy for his seasoned and creative strategic advice" (2015)

Chambers Asia-Pacific


“…Yu-Jin Tay, who has 'an impressive network of clients and contacts in the region', 'is very responsive', 'very knowledgeable and very sharp', 'strategically very sound and very experienced in international matters'.” 

The Legal 500 Asia Pacific (2019)

Yu-Jin Tay is the Managing Partner of Mayer Brown's Singapore office and is the head of Mayer Brown’s International Arbitration in Asia. He specialises in international arbitration arising from a broad range of commercial disputes across a range of sectors including energy, natural resources, manufacturing, technology, construction and infrastructure, as well as hospitality and real estate. Yu-Jin has experience of most of the world’s leading arbitral seats (including Paris, London, Geneva, Zurich, New York, Washington DC, Hong Kong, Seoul and Dubai) as well as under the rules of key arbitral institutions (including the ICC, SIAC, HKIAC, CIETAC, LCIA, DIAC, AAA-ICDR, KCAB, KLRCA, BANI, VIAC, ICSID and UNCITRAL Rules). Since 2001, Yu-Jin has advised or represented investors or states in investment treaty arbitrations and, since 2013, he has been a member of ICSID's panels of arbitrators and conciliators, designated by the Democratic Republic of Timor-Leste. In addition to counsel work, Yu-Jin has served as presiding, sole, or co-arbitrator in ICC, SIAC, LCIA, HKIAC, VIAC and ad hoc arbitrations.


Selected representative experience includes the following matters:

  • Represented one of China's largest metals refineries as respondent in an ICC arbitration seated in Singapore commenced by a European technology company. The dispute arose under various technology license agreements and related to ground-breaking technology developed independently by the respondent. The dispute involved claims in excess of USD 100 million and was subject to a variety of applicable laws. There was related local litigation involving intellectual property law and novel points of antitrust law. We achieved a successful result for our clients.
  • Represented a leading Korean contractor as respondent in an ICC arbitration seated in Singapore. The arbitration arose in connection with the construction of a multi-billion dollar petrochemical facility in India and included disputes over tax liability. A successful settlement was obtained on behalf of the client.


  • Winner - Telecoms & Media, Singapore – Client Choice Awards (2022)
  • “…Yu-Jin Tay, who has 'an impressive network of clients and contacts in the region', 'is very responsive', 'very knowledgeable and very sharp', 'strategically very sound and very experienced in international matters'.” – The Legal 500 Asia Pacific (2019)
  • Leading Individual - Dispute Resolution (International Firms), South Korea – Chambers Global (2021-2024)
  • Leading Individual - Dispute Resolution: Arbitration, Singapore – Chambers Global (2018-2024)
  • Foreign Expert Based in Singapore - Dispute Resolution, Japan – Chambers Global (2022-2024)
  • Foreign Expert Based in Singapore - Dispute Resolution, India – Chambers Global (2019-2023)


  • Singapore Public Service Commission, Overseas Merit Scholar
  • Inns of Court School of Law, Bar Vocational Course
  • University College London (University of London), LLB


  • England und Wales
  • Singapore


  • Englisch
  • Mandarin


  • Fellow and President, Singapore Institute of Arbitrators
  • Chairman, Arbitration Bar Committee, Singapore Institute of Arbitrators
  • Member, Third Party Funding Working Group, Singapore Institute of Arbitrators
  • Advisory Board Member, Japan Commercial Arbitration Association