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Katie Marquet-Horwood
Partner
Qualifications & Education
  • PhD Literature, University of Nottingham
  • English Language & Literature (BA), University of Oxford
Admissions
  • Law Society of England and Wales

Katie specialises in complex and high value commercial dispute resolution across a wide range of industry sectors, typically with an international element. She has experience of litigation before the English courts, major arbitral institutions and local courts in a number of jurisdictions, acting for major UK and foreign corporations and state-owned entities, as well as high net worth individuals.

Katie has been recognised as one of “the City’s brightest stars” by Legal Business and as a key lawyer by Legal 500 for her skills in international arbitration.

Katie has acted on some of the most significant cases to come before the English courts in recent years, including the first case to be heard under the Shorter Trials Scheme.

Background

Katie has a first class degree in English Language and Literature from the University of Oxford and a PhD in Literature.

Since qualifying at Mayer Brown International in September 2010, Katie has practised at Milbank, Tweed, Hadley & McCloy and Addleshaw Goddard, from where she joined Enyo Law in March 2019.

Reported cases include
  • NBT & Anr -v- Mints & Ors [2022] EWHC 871 (Comm)
  • NBT & anor -v- Boris Mints & ors [2023] EWHC 118 (Comm)
  • First Abu Dhabi Bank PJSC -v- BP Oil International Ltd. [2018] EWCA Civ 14
  • Chudley & Ors -v- Clydesdale Bank PLC (t/a Yorkshire Bank) [2017] EWHC 2177 (Comm)
  • AstraZeneca UK Limited -v- International Business Machines Corporation [2011] EWHC 306 (TCC)
  • Re Sigma Finance Corporation (in administrative receivership) [2009] UKSC 2
Representative Matters
  • Four members of the same family defending a USD850 million fraud claim brought by two banks majority owned and controlled by the Central Bank of Russia in the English Commercial Court. The claims are entirely governed by Russian law.
  • PETRONAS in its successful defence of a USD1.14 billion claim for fraudulent misrepresentation and breach of contract arising out of the termination of its investment in a Brazilian off-shore oil project. PETRONAS was awarded USD15 million in costs. ICC, Rio de Janeiro Seat, English law.
  • A major US agrochemical company in a series of high value Bermuda Form insurance arbitrations concerning coverage for c. USD9 billion of personal injury claims brought by US claimants and state departments
  •  A joint venture owned by major Russian and Italian Banks in a USD70 million LCIA arbitration claim against its co-partner arising out of breaches of a Shareholders' Agreement concerning the oil and gas sector in Russia.
  • An oil major in relation to ESG issues in sub-Saharan Africa.
  • A state-owned oil corporation in ad hoc arbitration proceedings arising out of a fraudulently procured contract, together with a section 67 jurisdictional challenge in the English Commercial Court.
  • A Puerto Rican company in LCIA arbitration proceedings against an Italian company arising out of the wrongful termination of a distribution agreement.
  • In LCIA arbitration proceedings between two leading Israeli and Chinese satellite operators in relation to claims for breach of contract and misrepresentation arising out of the critical malfunction of a communications satellite.
  • A former CEO in relation to FCA and Insolvency Service proceedings arising out of one of the most high profile UK corporate collapses in recent years.
  • Rabobank in relation to the complex, multi-jurisdictional investigation of LIBOR and EURIBOR manipulation.
  • Political risk insurers in two multi-million dollar LCIA arbitration proceedings concerning the Indonesian coal sector.
Professional Associations
  • ICC Young Arbitrators’ Forum
  • LCIA Young International Arbitrators Group
  • Arbitral Women
News
Oct 2, 2024
Enyo Law secures key positions in Legal 500 UK 2025 rankings
We are pleased to share that once again, Enyo Law has been ranked across fraud, litigation and international arbitration in...
Sep 26, 2024
ICC and LCIA Arbitration Statistics 2023: In-Depth Analysis and Insights
Arbitration continues to be a widespread method for resolving complex commercial disputes across a myriad of industries. Following Leonie Ghirardi's...
Sep 19, 2024
Supreme Court Confirms Anti-Suit Injunction in favour of foreign-seated arbitration proceedings: UniCredit Bank GmbH v RusChemAlliance LLC
On 18 September 2024, the UK Supreme Court gave its hotly anticipated reasoning in UniCredit Bank GmbH v RusChemAlliance LLC....
Aug 12, 2024
Arbitral institution stats 2024
Several of the key arbitral institutions have published their statistics for 2023. In this blog post we highlight some of...