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Ruth Derruau

Senior Associate

Contact
CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
London
EC4N 6AF
United Kingdom
Languages English, French

Ruth is a Senior Associate in the Antitrust, Competition and Trade Team in London. She has advised on a range of antitrust, merger control, regulatory and procurement matters for over seven years. Ruth advises clients across a number of industry sectors with a particular focus on the energy and consumer products sectors.

Ruth has both UK and EU merger control experience, having obtained clearances for clients in Phase 1 and Phase 2 proceedings, both unconditionally and with remedies. She advises several international companies on competition issues in their distribution and pricing arrangements. Ruth also advises on state aid, procurement and consumer protection law.

Ruth graduated in Law with French and studied at both Cardiff University and Université de Toulouse 1. She joined CMS Cameron McKenna in March 2014.

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Relevant experience

  • A global consumer goods company on its distribution/pricing policy.
  • Major international companies on competition law “behavioural” issues including abuse of dominance and restrictive practices.
  • Trade associations on competition issues relating to the conduct of their meetings as well as their constitution and governance arrangements.
  • Various clients on competition law compliance and dawn raids.
  • Companies in a range of sectors on merger clearances at UK, EU and multi-jurisdictional levels.
  • Various companies in the energy sector, on the state aid implications of renewable and other projects.
  • Post Office Ltd on the design and implementation of its tower procurements and other procurements.
  • National Grid on procurement matters relating to various projects.
  • Suppliers active in a variety of sectors on potential procurement challenges.
  • Microsoft on the CMA’s consumer law investigation into the supply of online gaming memberships.
  • A secondary ticketing platform on the CMA’s consumer law investigation into the online secondary tickets market.
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Memberships & Roles

  • Law Society's Competition Section
  • Competition Law Association
  • Procurement Lawyers’ Association
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Education

  • 2015 – Postgraduate Diploma in EU Competition Law, King’s College, London
  • 2009 – Postgraduate Diploma in Legal Practice, The College of Law, Guildford
  • 2008 – LL.B in Law and French, Cardiff University, Cardiff 
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12/05/2022
10 key aspects of the revised EU competition law in the field of distribution...
The new Vertical Block Exemption Regulation (VBER) and the new accompanying Vertical Guidelines (VGL) were published on 10 May 2022. The new VBER will enter into force on 1 June 2022 and apply for the next twelve years. The new VBER/VGL introduce sev

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03/07/2024
Automated Vehicles Act 2024: A deeper dive into its key implications for...
The Automated Vehicles Act 2024 (the “Act”) received Royal Assent on 20 May 2024. The Act is intended to provide a legal framework for the safe deployment and operation of self-driving vehicles on...
18/09/2023
CMA launches review into veterinary services market
On 7 September 2023, the Competition and Markets Authority (CMA) announced that it has launched a review into the veterinary services market for household pets in the UK (i.e. small animals such as dogs...
04/07/2022
Detailed scrutiny needed to make the Procurement Bill deliver against its...
The Procurement Bill introduced to Parliament in May goes to Committee Stage in the House of Lords this week. The political ambition behind the proposed legislation has been clearly voiced, but does not...
03/12/2021
CMS advises Blue Prism Group on £1.24bn offer from SS&C Technologies Holdings
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21/10/2019
The UK Government puts foreign investment control firmly back on the agenda
On 14 October 2019, the UK Government announced plans to introduce new legislation to strengthen the Government’s existing powers to scrutinise and intervene in business transactions on the grounds...
04/07/2019
CMA announces market study into online platforms and digital advertising 
On 3 July 2019, the CMA launched a market study into online platforms and digital advertising. This follows repeated calls from various committees and reviews for the CMA to scrutinise the sector, given...
03/07/2017
CJEU rules Hungarian gambling licensing regime incompatible with EU law...
The Court of Justice for the European Union (CJEU) has ruled that Hungary’s licensing framework for online gambling placed overly restrictive and unfair conditions on operators from other European Union...
18/05/2017
Brexit: a question of competence
On 16 May 2017, the Court of Justice of the European Union (CJEU) handed down its opinion on the process for concluding the EU’s free trade agreement (FTA) with Singapore, a so-called “new generation”...
18/05/2017
Brexit: a question of competence
The key question asked of the CJEU was whether the EU is able to sign and conclude the Singapore FTA itself, or whether Member States themselves also have to individually agree and ratify it. The answer...
12/04/2017
Risks of Brexit extensions for public contracts?
The FT recently reported that “hundreds of government contracts with the private sector that are due to expire are to be automatically extended because civil servants are too busy with Brexit to focus...