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Tse Wei is an international arbitration lawyer specialising in construction and engineering disputes.

Tse Wei advises on construction, commercial and investment disputes across the Asia-Pacific with particular experience of technical engineering, infrastructure and energy matters. He represents multinational clients and appears as counsel (advocate) in high-value arbitrations under major institutional rules (including ICSID, ICC, HKIAC, SIAC and AIAC) involving public international law and various common and civil law jurisdictions. His experience also includes managing and coordinating multi-jurisdictional proceedings.

Tse Wei also has experience with litigation before Malaysian courts on disputes across a broad range of industries, including complex contractual and shareholder disputes, and has acted as sole counsel in arbitration-related applications and contentious insolvency proceedings.

He has authored international publications on construction law and arbitration, including practitioner texts on comparative construction law and arbitration law, and has been cited by the Malaysian High Court.


Tse Wei was called to the Malaysian and English Bars.  He holds a Bachelors and Masters of Law from the London School of Economics, and is a Fellow of the Chartered Institute of Arbitrators. 

Tse Wei also sits on the AIAC Standard Form Building Contracts Expert Advisory Committee. He is fluent in English and Malay.


Experience & expertise

Selected matters

  • Project company on the engineering, construction and commissioning of a Vietnamese refinery and petrochemical complex, including a Singapore-seated SIAC arbitration and interim relief applications, relating to an English-law-governed FIDIC Silver contract against a multinational EPC consortium with claims in excess of US$2 billion
  • a leading global data centre operator in an SIAC expedited arbitration arising from technical electrical engineering and design defects in a Singapore colocation data centre
  • Private equity fund in a series of SIAC construction and M&A arbitrations against a multinational EPC consortium, original equipment manufacturer and M&A counterparties in relation to technical design defects in a South Asian combined cycle power plant, with parallel insurance claims
  • Indonesian owner of a combined cycle power plant in relation to potential delay, variation and payment claims by and against a multinational EPC consortium relating to construction disruptions, government intervention and COVID-19, and associated claims under performance bonds
  • Multinational telecommunications conglomerate in relation to ICSID investment treaty claims and concurrent actions under the World Trade Organisation dispute resolution regime against an Asian State
  • Chinese contractor in an ICC arbitration on variations and extensions of time under a Kazakh-law-governed FIDIC Pink agreement arising from the reconstruction of a major highway in Kazakhstan.