Home / People / Siobhan Kahmann
Portrait of Siobhan Kahmann

Siobhan Kahmann

Of Counsel

CMS DeBacker
Chaussée de La Hulpe 178
1170 Brussels
Belgium
Languages English, French

Siobhan has practised EU and UK competition law for over ten years in Brussels and the UK, in addition to counselling clients on state-aid/subsidy, regulatory - including telco reg, policy and trade matters. She is an Advocaat with the Brussels Bar, and a Solicitor in Scotland, England and Wales. Her competition experience has included: complex cartel infringement assessments, defence, and leniency applications; detailed vertical, horizontal, tech transfer and motor vehicle agreement analysis and support; substantial advice on different market inquiries; strategic and in-depth counsel for clients in abuse of dominance claims; and significant experience in matters on UK, European and international merger control. She also routinely advises on all aspects of state-aid and subsidy laws.

She has extensive experience advising on competition law in the tech industry, including IoT, big data and artificial intelligence, in addition to automotive and other transport, and on evolving sustainability and FMCG issues. Siobhan has recently spent over a year working as a senior in-house competition counsel at a global oil and gas company, where her focus included advising on new energies initiatives and electric car charging infrastructure, in addition to supporting a leading FMCG brand as its only in-house global senior competition counsel. She also specialises in different aspects of tech regulation, including telco reg, net neutrality, and autotech with broad experience in electric and autonomous vehicles. Siobhan is the Law Society of Scotland’s elected International Council Member and is an active member of its Competition Committee, Tech Committee and Trade Working Group.

more less

Relevant experience

  • Cartel defence: advising clients across different industries on cartel defence strategies and procedures in the EU and at national level including leniency applications, and all stages of investigations. 
  • E-commerce: engaging in comprehensive e-commerce review, training and strategy for clients in a number of different sectors and jurisdictions.
  • Agreements: providing detailed and practical legal advice and training to a diverse range of MNCs on vertical, horizontal and other complex arrangements.
  • Abuse of dominance: counselling clients on formulating abuse of dominance complaints including strategy and policy towards regulators and responses to investigations, in addition to defence approaches and official responses.
  • Compliance programmes: compiling extensive and tailored compliance programmes and training for various clients across numerous sectors and jurisdictions, including designing e-learning modules.
  • Merger control: strategically advising on and securing the clearance of a number of mergers, including but not limited to the automotive industry, at both national and European level.
  • State-aid/subsidy: providing strategic support and analysis on all types of state-aid and subsidy review and awards, and defending decisions on no award of aid.

Other Regulatory

  • Telco Reg: providing wide-ranging telco reg advice from both a UK and EU perspective, including electronic communications services rules and regulations, and relevant restrictions, obligations and opportunities applicable across the various frameworks and evolving service categories/aspects
  • Net Neutrality: advising on pan-European net-neutrality issues, with a focus on zero-rating.
  • EV: counselling clients in the evolving electric/autonomous vehicle and energy industry on a range of competition and regulatory issues, state-aid/subsidy and policy support.
  • Regulatory: providing legal support and analysis across a wide-range of EU regulatory and competition issues including sustainability, energy, emissions, CRS, free movement and environmental frameworks.
  • Trade: preparing trade submissions for a variety of different EU and WTO procedures.
  • Policy: supporting and enabling clients’ successful engagement on policy issues with the EU institutions.
more less

Memberships & Roles

  • Advocaat, Brussels Bar (Dutch)
  • Solicitor and Notary Public, Law Society of Scotland
  • Solicitor, Law Society of England and Wales
  • Writer of the Signet to her Majesty the Queen (WS)
  • Elected Council Member (International), Law Society of Scotland
  • Committee Member, Competition, Tech Law, and International Trade Committees, with the Law Society of Scotland
  • Observer Member in the EU Law Committee, Member of the Competition Section, Law Society of England and Wales
more less

Publications

Siobhan is a regular contributor and presenter on a range of legal developments including competition law, e-commerce, big data, net neutrality, technology law, and electric and autonomous vehicles. She has also written and presented extensively on Brexit, including on competition law, and lawyers’ practising rights.

more less

Education

  • LL.B Honours, University of Aberdeen
  • LL.M, EU Competition and Business Law, Universiteit van Amsterdam
  • DLP, University of Edinburgh 
  • QLTT English Law, College of Law
more less
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

Feed

09/06/2022
Pub­lic Aye we­bin­ar: The new UK sub­sidy con­trol re­gime
The Sub­sidy Con­trol Act 2022 re­ceived Roy­al As­sent at the end of April.  In the words of Small Busi­ness Min­is­ter, Paul Scully, the new re­gime is to be, “ro­bust yet agile, al­low­ing pub­lic au­thor­it­ies...
29/04/2022
UK Sub­sidy Con­trol re­gime: Roy­al As­sent
On 28 April 2022, the Sub­sidy Con­trol Bill re­ceived Roy­al As­sent, form­ally mak­ing the Bill in­to an Act of Par­lia­ment – the Sub­sidy Con­trol Act 2022.  However, as high­lighted in our ho­ri­zon scan­ning...
07/04/2022
The European Green Deal in ac­tion: sig­ni­fic­ant new cir­cu­lar eco­nomy meas­ures...
On 30 March 2022, the European Com­mis­sion (“EC”) presen­ted a pack­age of meas­ures in­ten­ded to make sus­tain­able products the norm in the EU, fa­cil­it­ate cir­cu­lar busi­ness mod­els and em­power con­sumers...
01/03/2022
Pro­posed man­dat­ory cor­por­ate sus­tain­ab­il­ity due di­li­gence re­quire­ments...
On 23 Feb­ru­ary 2022, the European Com­mis­sion ad­op­ted a long-awaited pro­pos­al for a Dir­ect­ive on cor­por­ate sus­tain­ab­il­ity due di­li­gence for widely-defined spe­cified “com­pan­ies”. The pro­pos­als are wide...
11/02/2022
UK sub­sidy con­trol re­gime: The year ahead 
As re­por­ted in our pre­vi­ous Law-Now here, in June 2021 the UK Gov­ern­ment began its form­al pro­cess of im­ple­ment­ing le­gis­la­tion to re­place the EU State aid rules by in­tro­du­cing the Sub­sidy Con­trol Bill...
26/01/2022
Res­ults of IoT Sec­tor In­quiry out: Com­mis­sion con­firms con­cerns, con­siders...
1. In­tro­duc­tion On 20 Janu­ary 2022, the European Com­mis­sion pub­lished its Fi­nal Re­port on the con­sumer In­ter­net of Things (the “IoT”) Sec­tor In­quiry, which it launched in 2020 (see press re­lease...
18/10/2021
CMS Elec­tric Vehicle Round-up Q3 2021
We are pleased to share the fourth is­sue of the CMS Elec­tric Vehicle Round-up – an at-a-glance round-up of the key de­vel­op­ments in the UK over Q3 2021 in the EV space. In this is­sue, we cov­er some...
30/09/2021
Net Zero and European Green Deal
Join CMS we­bin­ar on Net Zero and the European Green Deal, which will be presen­ted by Olivia Jam­is­on and Dalia Majum­der – Rus­sell from CMS UK, Ag­nieszka Skorupińska from CMS Po­land and Siobhan Kah­mann...
30/07/2021
Plastics and pack­aging laws in the European Uni­on
1. What is the gen­er­al le­gis­lat­ive frame­work reg­u­lat­ing pack­aging and plastic waste in your jur­is­dic­tion? Gen­er­al waste man­age­ment con­trols in the EU that ap­ply to pack­aging and plastics waste are found...
Comparable
30/06/2021
New UK sub­sidy con­trol re­gime re­vealed
The UK Gov­ern­ment has today in­tro­duced the Sub­sidy Con­trol Bill to Par­lia­ment, kick start­ing the form­al pro­cess of im­ple­ment­ing the UK’s do­mest­ic re­gime on sub­sidy con­trol fol­low­ing de­par­ture from the...
22/06/2021
CMS Elec­tric Vehicle Round-up Q2 2021
We are pleased to share the third is­sue of the CMS Elec­tric Vehicle Round-up – an at-a-glance round-up of the key de­vel­op­ments in the UK over Q2 2021 in the EV space. In this is­sue, we cov­er the CMA...
11/06/2021
European Com­mis­sion’s IoT Sec­tor In­quiry: Pre­lim­in­ary Re­port pub­lished,...
On 9 June 2021, the European Com­mis­sion pub­lished its Pre­lim­in­ary Re­port on the con­sumer In­ter­net of Things (the “IoT”) Sec­tor In­quiry which it launched last sum­mer (see press re­lease here and Q&As...