Contact details

Alex Thornton de Mauroy

T: +44 20 7809 2058 M: +44 7730 751 720 Email Alex | vCard Office: London

Alex Thornton de Mauroy Associate

Contact details

Alex Thornton de Mauroy

T: +44 20 7809 2058 M: +44 7730 751 720 Email Alex | vCard Office: London

Alex is an associate specialising in international arbitration and High Court litigation, acting for corporates, banks and high net worth individuals across a broad spectrum of matters.
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Alex has substantial experience of international arbitrations, dealing with complex matters across the energy, agricultural and finance industries. He has acted for clients in court applications relating to the challenge of awards and their enforcement, and advised on investor-state claims.

Alex also has notable litigation experience, acting in high profile, multi-jurisdictional proceedings arising out of the Madoff fraud, advising on banking and finance disputes, intervening in Privy Council proceedings on behalf of a class of investors, and representing a client in public law claims brought against the Secretary of State for Transport. Alex has also advised in respect of freezing orders, injunctive relief preventing the misuse of confidential information and other forms of interim relief.

In 2018, Alex spent six months on secondment with an international investment bank in Paris, working in the litigation department.

  • International arbitration
  • Finance litigation
  • Commercial litigation

LCIA arbitration

Representing oil and gas companies from the same group in respect of disputes arising out of two separate drilling operations offshore West Africa, with claims and counterclaims valued at c.US$750 million.

LCIA arbitration

Acting for oil and gas companies in relation to disputes arising out of drilling operations offshore West Africa, with claims and counterclaims valued at over US$100 million.

Share placement agreement dispute

Advising a placement agent in relation to a claim for unpaid placement fees and other amounts due under agreement, where disputes are to be resolved by LCIA arbitration.

ICC arbitration

Advising on grounds for challenge of an ICC award dismissing claims by a software company valued at c.US$270 million.

ICC arbitration

Claiming damages from a JOA operator of an onshore block in sub-Saharan Africa under the farm-in agreement, JOA and PSC.

High Court challenge and remitted LCIA arbitration

Successfully challenging an arbitration award under section 68 of the Arbitration Act 1996, resulting in a reported decision: (K and others v P and others [2019] EWHC 589). Acting in remitted arbitration and related multi-jurisdictional enforcement proceedings.

High Court jurisdiction challenge

Assisting with the successful defence of a jurisdictional challenge to an arbitral award relating to competing arbitration clauses, resulting in a reported decision: (C v D1, D2 and D3 [2015] EWHC 2126).

Investor-state and civil claims

Advising investor in relation to potential claim under a BIT and assisting with drafting of Notice of Dispute. Investigating and advising on grounds for potential civil claim.

Investor-state claim

Providing advice to a state in respect of defending enforcement of an ICSID award, considering issues of jurisdiction and sovereign immunity.

ISDA derivatives dispute

Advising an international bank on a dispute arising out of a 2002 ISDA Master Agreement.

Liquidation of Herald Fund

Representing an international investment bank on the liquidation committee of Herald Fund SPC (In Official Liquidation). Successfully intervening in proceedings of the Judicial Committee of the Privy Council on behalf of a class of investors: (Privy Council Appeal No 00092 of 2016 [2017] UKPC 19).

Madoff fraud

Acting for FIM Advisers LLP in proceedings arising out of the largest Ponzi scheme in history.

Madoff fraud

Advising a European bank in connection with its more than €500 million exposure to the Madoff fraud, involving proceedings in various jurisdictions.

Mis-selling claims

Advising a partnership in respect of claims for consequential loss in relation to a mis-sold interest rate swap.

Rail franchise litigation

Acting for Arriva in the high profile and expedited proceedings commenced against the UK Secretary of State for Transport in respect of the East Midlands rail franchise.

Fraud claim

Acting for an individual in respect of a fraud claim relating to his investment in a business.

Cryptocurrency dispute

Advising a private individual based in England in relation to a loss of bitcoins due to an alleged malfunction with a cryptocurrency platform created by a US company.

Prohibitory injunction

Obtaining an injunction preventing the misuse of confidential information on behalf of a high net worth individual.

Freezing order and contempt of court

Advising a high net worth individual in relation to a freezing order, associated disclosure obligations and their contempt of court.  The freezing order was lifted, the contempt cleared, committal order discharged and arrest warrant revoked.

Business management dispute

Assisting with the defence of a claim in respect of the alleged mismanagement of a hotel.

  • Banks and banking
  • Energy and natural resources

ISDA derivatives dispute

Advising an international bank on a dispute arising out of a 2002 ISDA Master Agreement.

Liquidation of Herald Fund

Representing an international investment bank on the liquidation committee of Herald Fund SPC (In Official Liquidation).  Successfully intervening in proceedings of the Judicial Committee of the Privy Council on behalf of a class of investors: (Privy Council Appeal No 00092 of 2016 [2017] UKPC 19).

Madoff fraud

Acting for FIM Advisers LLP in proceedings arising out of the largest Ponzi scheme in history.

Madoff fraud

Advising a European bank in connection with its more than €500 million exposure to the Madoff fraud, involving proceedings in various jurisdictions.

Mis-selling claims

Advising a partnership in respect of claims for consequential loss in relation to a mis-sold interest rate swap.

High Court litigation

Defending a claim by a large oil company against our client in the High Court.

Investor-state and civil claims

Advising investor in relation to potential claim under a BIT and assisting with drafting of Notice of Dispute. Investigating and advising on grounds for potential civil claim.

LCIA arbitration

Representing oil and gas companies from the same group in respect of disputes arising out of two separate drilling operations offshore West Africa, with claims and counterclaims valued at c.US$750 million.

LCIA arbitration

Acting for oil and gas companies in relation to disputes arising out of drilling operations offshore West Africa, with claims and counterclaims valued at over US$100 million.

ICC arbitration

Claiming damages from a JOA operator of an onshore block in sub-Saharan Africa under the farm-in agreement, JOA and PSC.

High Court jurisdiction challenge

Assisting with the successful defence of a jurisdictional challenge to an arbitral award relating to competing arbitration clauses, resulting in a reported decision: (C v D1, D2 and D3 [2015] EWHC 2126).

More: Energy and natural resources

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