Herbert Smith Freehills (London)

Kim Dietzel

Herbert Smith Freehills (London)
Lawyer (Partner)

Kim acts on the full spectrum of competition law issues across a range of sectors (including financial services, consumer goods and online markets). She has a particular focus on the aviation industry, where she also provides highly specialised regulatory advice. Kim has a wealth of experience in relation to multi-jurisdictional cartel and leniency matters, and is one of the few competition practitioners with UK criminal cartel experience. In relation to merger control Kim has acted on a number of high profile appeals before the EU Courts, as well as on complex merger control investigations and remedy negotiations. In recent years, solicitor-advocate Kim has developed a leading private enforcement practice, acting in particular for defendants in precedent-setting follow-on damages cases, including appearing as an advocate in the CAT. Kim has been confirmed by Global Competition Review (GCR) as one of the "top 100 women in antitrust".

Distinctions

Linked authors

Herbert Smith Freehills (London)
Herbert Smith Freehills (London)
Herbert Smith Freehills (Johannesburg)
Herbert Smith Freehills (London)
Herbert Smith Freehills (London)

Articles

1021 Bulletin

Kim Dietzel, Stephen Wisking, Kristien Geeurickx The UK Competition Authority publishes a notice of a standalone competition damages claim against a trade association for abusing its dominant position and engaging in anti-competitive agreements (International Tin Association)

255

On 26 January 2021 the Competition Appeal Tribunal (CAT) published a notice of a standalone competition damages claim (brought under section 47A of the Competition Act 1998) by Kerilee Investments, a metal trader, against the International Tin Association, a UK based trade association. The (...)

Stephen Wisking, Kim Dietzel, Andrew North, Ruth Allen The UK Supreme Court overturns a Competition Appeal Tribunal’s ruling and clarifies the class action regime in a proceeding brought against a credit card company (Merricks / Mastercard)

142

Earlier today the Supreme Court handed down its hotly-anticipated judgment regarding the certification of an opt-out competition collective action brought by Walter Merricks against Mastercard. The claim is seeking £14bn in damages on behalf of some 46.2 million UK consumers, in respect of (...)

Daniel Woods, Stephen Wisking, Kim Dietzel, Ruth Allen The UK Supreme Court hands down a significant judgment relating to the certification of a £14bn opt-out competition collective action brought against a credit card company (Merricks / Mastercard)

108

On 11 December 2020 the Supreme Court handed down a very significant judgment relating to the certification of a £14bn opt-out competition collective action brought by Walter Merricks against Mastercard, in respect of losses alleged to have resulted from the use of anti-competitive multilateral (...)

Kim Dietzel, Stephen Wisking The UK Competition Appeal Tribunal allows the first class action brought under the competition law collective redress regime and continues providing some clarifications on important aspects of the regime (Dorothy Gibson / Pride Mobility Products)

65

Already, 2017 has seen significant developments in the UK’s competition litigation landscape. Most recently, last Friday the Competition Appeal Tribunal (CAT) allowed the first ’class action’ brought under the new competition law collective redress regime to continue, at least for now, providing (...)

Kim Dietzel, Stephen Wisking The UK Competition Appeal Tribunal awards £8.6 million damages and finds that an undertaking setting of UK multilateral interchange fees for its payment cards infringed national and EU competition law on anti-competitive agreements (Sainsbury’s / MasterCard)

51

On 14 Jul the UK Competition Appeal Tribunal (CAT) issued its judgment in the damages claim brought by Sainsbury’s against MasterCard. The CAT found that MasterCard’s setting of UK multilateral interchange fees (MIFs) for its payment cards infringed the Article 101 TFEU/Chapter I prohibition on (...)

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