John Trehey > Maples Group > Hong Kong, Hong Kong > Lawyer Profile

Maples Group
26th Floor, Central Plaza
18 Harbour Road
Hong Kong

Work Department

Dispute Resolution & Insolvency


John is Head of Maples and Calder’s Asia Dispute Resolution & Insolvency team. In addition, he advises on all aspects of mergers and acquisitions, banking and general corporate matters.  He has a broad international client base comprised of major corporates, financial institutions and insolvency-related officeholders.  His expertise covers both Cayman Islands and British Virgin Islands law.


John joined the Maples Group in 2005 and was elected as a partner in 2009.  He previously worked for Herbert Smith in Hong Kong and, before that, Buddle Findlay in New Zealand.  John is recognised by Asian Legal Business as one of the top 10 offshore lawyers in Asia.  He is also recommended as a leading litigation lawyer by The Legal 500 in its tier 1 recognition of the Maples Group, and ranked as a notable practitioner in IFLR1000.




University of Auckland, New Zealand

Lawyer Rankings

Hong Kong > Offshore law firms

Leading Cayman law firmMaples Group provides ‘access to the latest information and deep knowledge in the challenging regulatory environment’. The practice has a solid track record assisting international clients with inbound investment into Asia and outbound investment from Asian clients internationally. Ann Ng heads the funds and investment management practice and focus on the international investment fund market. Matt Roberts, who is based in Singapore and Hong Kong, heads the corporate team and focuses on M&A, private equity, joint ventures, reorganisations, corporate governance and capital markets. Terence Ho is recommended for private equity, venture capital and hedge funds work and has acted for sponsors across Asia. John Trehey heads the dispute resolution and insolvency practice, handling both contentious and non-contentious cross-border matters. Aisling Dwyer is another name to note for disputes and has considerable experience in high value, international litigation. Singapore-based Michael Gagie was recently appointed as regional managing partner for Asia. Juno Huang and Karen Zhang Pallaras were promoted to partner in February 2021 and Nick Stern joined the dispute resolution and insolvency team from Freshfields Bruckhaus Deringer in November 2020. Jonathan Silver departed in November 2021, and Anthony Webster has also left the firm now. Greg Knowles, Mark Western and Stacey Overholt retired.

Foreign-based expertise > Leading firms

Maples Group‘s ‘good depth of knowledge and solution-focused pragmatic advice‘ extends across the UK, Asia Pacific and the Middle East with practitioners in London, Singapore, Hong Kong and Dubai contributing the firm’s Caribbean expertise. The team acts for a broad range of global clients on corporate, banking, finance and fund work involving Cayman and BVI law.

For more information on specific regions, please click on the tabs below

Maples Group‘s London office is led by managing partner Heidi de Vries, who handles Cayman and BVI work relating to the structuring, formation and maintenance of hedge funds and private equity funds. Clients also single out ‘expert partnerHarjit Kaur, who specialises in the establishment and maintenance of Cayman-based alternative investment funds; Jonathan Caulton, who leads the London finance practice and is admitted to practise in Cayman; Matthew Gilbert, who heads up the London-based BVI team and real estate finance group; and corporate team head Jack Marriott, who focuses on BVI-related work.
In Maples Group‘s Singapore office, regional managing partner Michael Gagie also acts as the firm’s global head of its BVI practice; he is also a key contact for banking and structured finance work, acting for both lenders and borrowers. Matt Roberts splits his time between the Singapore and Hong Kong offices and is Asia head of the corporate practice, specialising in M&A, private equity issues, governance work and capital markets mandates. Also in the Hong Kong office are fund partner Ann Ng and John Trehey, who leads the dispute resolution, insolvency and restructuring practice across Asia; both are admitted to practise in the BVI.
From the Maples Group office in Dubai, joint managing partners Manuela Belmontes and Philip Ireland are the key contacts for Caribbean-related work. Belmontes is active in the corporate and finance spaces, particularly focusing on international capital markets and financing mandates relating to Cayman. Ireland is a go-to name for Cayman investment funds work, specialising in collective investment schemes.