Costanza Mussi

Counsel, Paris, Milan

Biography

Overview

Costanza Mussi is counsel in the Competition, EU Law and Economic Regulation practice of White & Case in Paris. Costanza represents and assists clients in relation to anti-competitive practices, merger control, commercial and administrative litigation, as well as distribution and consumer law.

Before joining White & Case in 2016, Costanza was an associate in the Paris office of a major French law firm.

Bars and Courts
Paris
Education
Master 2 (MA equivalent), International Trade Law
Université Paris X-Nanterre
Master's Degree
International and EU Law
Université Paris X-Nanterre
General Law Degree
Pisa University
Italy
Languages
Italian
French
English
Spanish

Experience

Representing a leading technology company in litigation matters arising in France, related to alleged infringements to the French Commercial Code as well as the French Consumer Code;

Assisting a major player in Europe's retail sector in its annual commercial negotiations with suppliers as well as in the definition and implementation of its pricing policy and display and in a litigation matter related to alleged infringements to the French Consumer Code;

Successfully representing Intermarché Casino Achats ("Inca-a"), the joint purchasing venture between Casino and Intermarché in an appeal against a decision of the European Commission (EC) to order inspections at premises of Intermarché Casino Achats and its parent companies Casino and Intermarché, leading to the annulment in its entirey of the EC inspection decision by the EU's Court of Justice;

Assisting GRS, the international joint venture between Casino and Intermarché, in its international negotiations with suppliers as well as in day-to-day business and activities;

Representing Intermarché in several litigation matters against the Ministry of the Economy (DGCCRF) related to alleged infringements to the French Commercial Code;

Successfully representing Free Mobile in class actions brought by the French consumers association UFC Que-Choisir;

Representing Casino Guichard-Perrachon, a very significant French food retail group, on the acquisition of the entire share capital and voting rights of Monoprix SA one of the largest supermarket chains in France, and the subsequent filing of the transaction before the French Competition Authority which opened a Phase 2 examination.*

*Experience prior to joining White & Case in 2016.

Publications

La Commission peut rejeter une plainte au motif qu'une autorité nationale de concurrence traite déjà l'affaire, AJ Contrats d'affaires - Concurrence - Distribution (Dalloz), n°3, March 2015, p. 134-135

Awards and Recognition

Recognized as "Key Lawyer" by Legal 500 EMEA 2024 for EU, Competition and Distribution in France:
''An indispensable team for competition law. There is nothing Yann Utzschneider doesn't know about competition law and he is a key figure in his field. Costanza Mussi is also very competent.''