Call 2023
George Hack
Team Leader
+44 (0)207 842 3762
Click here to email
Dilly Stewart
Team Leader Assistant
+44 (0)20 3873 6858
Click here to email
Wee-An has a broad practice spanning judicial review, commercial litigation and international arbitration matters, and has been instructed as sole counsel in both arbitration and court proceedings.
Before coming to the Bar, Wee-An practised as a solicitor in Linklaters’ litigation and arbitration practice. He was also the Associate (Judicial Assistant) to the Hon Justice Melissa Perry at the Federal Court of Australia.
Acting (with Anneliese Day KC and Philip Ahlquist) in a dispute in the Commercial Court concerning deferred/earn-out consideration following the sale of a financial services company, involving allegations of fraud.
Acting (as sole counsel) for the respondent and counterclaimant in a sports arbitration concerning a contractual dispute.
R (on the application of Oxford Business College UK Limited) v Secretary of State for Education [2025] EWHC 2299 (Admin)
Acting (with Jason Coppel KC) in a successful judicial review challenge against the Secretary of State for Education.
Acting (with Jessica Simor KC and Adam Tolley KC) for a claimant in proceedings against the Secretary of State for Education, involving a claim in judicial review and a claim for inducing a breach of contract.
Camelot UK Lotteries Ltd v Gambling Commission [2022] EWHC 1664 (TCC), [2022] EWCA Civ 1020
Acting for Camelot in its challenge to the Fourth National Lottery Licence (as a solicitor).
Acting (with Jessica Simor KC and Adam Tolley KC) for a claimant in proceedings against the Secretary of State for Education, involving a claim in judicial review and a claim for inducing a breach of contract.
R (on the application of Oxford Business College UK Limited) v Secretary of State for Education [2025] EWHC 2299 (Admin)
Acting (with Jason Coppel KC) in a successful judicial review challenge against the Secretary of State for Education.
Camelot UK Lotteries Ltd v Gambling Commission [2022] EWHC 1664 (TCC), [2022] EWCA Civ 1020
Acting for Camelot in its challenge to the Fourth National Lottery Licence (as a solicitor).
Acting for an energy company in the defence of regulatory enforcement proceedings commenced by Ofgem for alleged licence infringements (as a solicitor).
Assisting with advice on the limits of the Financial Ombudsman Service’s jurisdiction over complaints (as a pupil).
Acting (with Craig Ulyatt) for an airline in proceedings in the King’s Bench Division seeking the transfer and consolidation of dozens of County Court default judgments to the High Court, and for those default judgments to be set aside.
Fox Flight Holdings Limited v 247 Aviation Limited and another
Acting (with Tamara Oppenheimer KC) for the second defendant in a claim for delivery up of an aircraft involving the effectiveness of a repairer’s lien against the bailor of the aircraft.
Air Europa v BOC Aviation
Assisting with a high value dispute concerning the non-delivery of aircraft under lease agreements and whether the basis of the transactions had totally failed (as a pupil).
FW Aviation v VietJet [2024] EWHC 1945 (Comm)
Assisting with research relating to a claim for over $200 million arising from four aircraft leasing transactions (as a pupil).
Advising (with Richard Lissack KC) on Cayman Islands law and procedure in respect of frozen bank payments.
Assisting with the defence of a bank to group litigation claims concerning, among other things, the scope of section 140A of the Consumer Credit Act 1974 (as a pupil)
Assisting with a dispute concerning repayment of funds lent to a Bank Audi SAL by the International Finance Corp (as a pupil).
Assisting with advice on the jurisdiction of the English court, under sections 15A to 15E of the Civil Jurisdiction and Judgments Act 1982, in respect of potential claims against Lebanese banks (as a pupil).
Advising a leading investment bank in a dispute concerning the construction of indemnity provisions in the 2002 ISDA Master Agreement (as a solicitor).
Advising a leading asset manager on issues relating to state immunity and choice of court (as a solicitor).
Acting (with Anneliese Day KC and Philip Ahlquist) in a dispute in the Commercial Court concerning deferred/earn-out consideration following the sale of a financial services company, involving allegations of fraud.
GLAS SAS (London Branch) v European Topsoho SARL & Ors [2024] EWHC 83 (Comm)
Assisting with a substantial bond repayment dispute in the Commercial Court, involving claims under s.423 of the Insolvency Act and in unlawful means conspiracy (as a pupil). Summary judgment for part of the claim was successfully obtained in July 2024.
Acting (with Ben Lynch KC) in a dispute concerning deferred/earn-out consideration following the sale of a technology company.
Assisting with a claim by a telecommunications service provider against a supplier for breaches of a contract providing for the lease and physical installation of fibre-optic connections (as a pupil).
Assisting with the defence of a technology company against claims for alleged breach of non-solicitation/non-circumvention provisions (as a pupil).
Assisting with Points of Defence in response to a s. 994 petition for a lead investor and minority shareholder in a cryptocurrency business (as a pupil).
Wirral Council v Indivior plc and Reckitt Benckiser plc [2023] EWHC 3114 (Comm)
Assisting with a claim by investors against FTSE 100 and 250 companies under sections 90 and 90A of FSMA 2000, alleging non-disclosure of misconduct in the US relating to the marketing of pharmaceuticals and dishonest conduct by executives (as a pupil).
Allianz Funds Multi-Strategy Trust & Ors v Barclays Bank plc [2024] EWHC 235 (Ch)
Assisting with claims by a group of funds and other investors (including pension funds, hedge funds and others) under sections 90 and 90A of FSMA 2000 in respect of “dark pool” trading and the role of High Frequency Traders (as a pupil).
Wee-An has developed substantial experience in arbitration and other forms of alternative dispute resolution (including expert determination), including in practice as a solicitor.
Acting (as sole counsel) for the respondent and counterclaimant in a sports arbitration concerning a contractual dispute.
Acting (with Richard Handyside KC and Paul Casey) in a high-value banking arbitration under the LCIA rules.
Acting (as sole counsel) for a claimant seeking recognition and enforcement in England of a c. US$17m LCIA award in its favour.
Acting for a mining sector client in a commodity trading dispute with a Chinese counterparty in an UNCITRAL/HKIAC-administered arbitration (as a solicitor).
Acting for a leading investment bank in disputes concerning frozen payments under ISDA Master Agreements and GMRAs, arising from the Russian invasion of Ukraine (as a solicitor).
Assisting with an LCIA arbitration concerning an attempt to expel a member from an LLP, involving allegations of conspiracy (as a pupil).
Assisting with a high-value LCIA arbitration concerning aircraft leasing issues arising from the Russian invasion of Ukraine (as a pupil).
Assisting with a Bermuda Form arbitration involving claims for declarations and indemnities arising out of Covid-19 related losses (as a pupil).
Siem & Ors v Womble Bond Dickinson (UK) LLP (BL-2023-001216)
Acting (with Mark Simpson KC and Daniel Edmonds) in the defence of a leading solicitor’s firm against a substantial claim brought in the Chancery Division relating to a property development in Kensington, London.
Mitchell v Leigh Day (KB-2023-002577)
Assisting with matters relating to the ongoing defence of a leading firm of solicitors in a substantial professional negligence claim in the King’s Bench Division, relating to the defendant’s conduct of litigation (a clinical negligence claim) in Dubai (as a pupil).
Riad Al Sadiq v Harney, Westwood & Riegels & Ors [2024] EWHC 818 (Comm)
Assisting with matters relating to the defence and summary disposal of a high-value professional negligence claim in the Commercial Court relating to the defendant’s conduct of substantial litigation in the Cayman Islands, Privy Council, and Dubai (as a pupil). In April 2024, the defendants obtained summary judgment in respect of the majority of the claim.
Admitted in the High Court of Australia and the Supreme Court of New South Wales (2019).
Following an expedited hearing in August 2025, the Administrative Court (Ellenbogen J)…
Season 4: Episode 7
This is the seventh episode in the fourth series of The Fountain…
Following the successful completion of their pupillages, Wee-An Tan, Ruth Flame, Andrew…
George Hack
Team Leader
+44 (0)207 842 3762
Click here to email
Dilly Stewart
Team Leader Assistant
+44 (0)20 3873 6858
Click here to email
Admitted in the High Court of Australia and the Supreme Court of New South Wales (2019).
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