Mr Yu-Jin Tay > Mayer Brown > Singapore, Singapore > Lawyer Profile

Mayer Brown

Work Department

International Arbitration.


Yu-Jin Tay is a partner in Mayer Brown’s Singapore office and is a member of Mayer Brown’s global International Arbitration practice. 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.

In 2011, Yu-Jin was one among few Asian lawyers featured in Global Arbitration Review’s global 45 under 45 ranking. He has also been listed annually as a leading individual in global legal directories including GAR’s International Who’s Who of Commercial Arbitration (since 2010), Chambers Asia-Pacific and Legal 500 Asia-Pacific (since 2008; Asia-wide, Singapore, Korea and Indonesia chapters), the Euromoney Guide to the World’s Leading Experts in Commercial Arbitration (since 2006) and Benchmark Litigation (Local Disputes Star, 2013). Directories report Yu-Jin as having been described by peers as “a specialist among specialists” (Chambers, South Korea, 2016), “great at resolving complex problems and explaining them simply” (Chambers, Singapore, 2017). He has been described by clients as their “first choice for arbitration matters” and “extremely sophisticated” (Chambers, South Korea, 2017), “logical and solution-oriented… tough in making points” (Chambers, Singapore, 2016), and a “very good, articulate advocate who is one of the faces of the next generation of Singaporean arbitration practitioners” (Chambers, Singapore, 2014), “noteworthy for his seasoned and creative strategic advice” (Chambers, Asia Pacific, 2015).

Before Mayer Brown, Yu-Jin practiced for over 16 years in international firms and has also worked in London, Paris and Washington DC. Prior to private practice, he served as counsel and military prosecutor in the Ministry of Defense in Singapore and trained as a barrister at Fountain Court Chambers in London. He speaks English and Mandarin.


Admitted in England and Wales and Singapore.


English and Mandarin.


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

Lawyer Rankings

South Korea > International arbitration

Historically concentrating on disputes in the energy, natural resources and infrastructure sectors, Mayer Brown continues to expand its international arbitration offering with the addition of former Kim & Chang partner Kay-Jannes Wegner, who joined in May 2021. Wegner represents Asian and European clients across a broad spectrum of energy, construction and defense-related arbitrations. Construction partner Paul Teo is also highly recommended. Located in Singapore, the practice is led by Yu-Jin Tay .

Singapore > International arbitration

The international practice of Mayer Brown is active in disputes related to Singapore, Indonesia, Vietnam and South Asia, with particular expertise in South Korea, Japan and China matters. A notable strength for the firm is the energy, LNG and power sector, as well as being experienced in infrastructure and natural resources sector work. Spearheading the practice is Yu-Jin Tay, who specialises in international arbitration arising from a range of commercial disputes including energy, natural resources, manufacturing, technology, construction and infrastructure matters. Another key name in the team is Kay-Jannes Wegner, whose forte is cross-border disputes.

Singapore > Energy: foreign firms

Mayer Brown‘s energy practice acts for major clients on LNG-to-power projects, land-based and floating LNG terminal projects, acquisition and financings. The team has a strong record of representing sponsors, lenders and power generators in renewable matters, in addition to disputes capabilities such as arbitration. Key names to note include practice chair Nick Kouvaritakis, a driving force behind the office’s LNG workload; Sean Prior, who advises on both transactional and contentious matters; and Yu-Jin Tay, who focuses on disputes.