Mariana de Azevedo Castro César
Advocacia Del Chiaro‘Highly specialised in complex antitrust matters’, boutique firm Advocacia Del Chiaro is singled out for its impressive historical track record in landmark cases in an array of industries, including steel, automotive, consumer products, technology, digital markets and financial services. Behavioural work, including major investigations into anti-competitive conduct and cartels, and competition litigation are at the core of the practice, which is ‘able to use valuable international practice and case law from other relevant jurisdictions as a driver for local authorities’ assessments’. Merger control issues are also handled by the department, which is under the joint leadership of competition law veteran José Del Chiaro and Ademir Antonio Pereira Júnior, the latter of whom has led several investigations and merger review cases in traditional industries and the digital economy. Luiz Felipe Rosa Ramos, ‘a rising star in the firm’s constellation’, advises on conduct cases, merger filings, and leniency and settlement agreements. Associate Mariana de Azevedo Castro César is another name to note for merger proceedings and investigations into cartels and unilateral conduct.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘Advocacia José Del Chiaro deserves more than any other Brazilian firm the title of boutique in competition and antitrust. Firstly because the firm handles the most relevant and complex behavioural cases heard by CADE's Tribunal with top-notch quality of work and client-oriented strategy. Secondly because they are among the very few firms which are able to use valuable international practice and case law from other relevant jurisdictions as a driver for local authorities' assessments.’
‘José Del Chiaro, the founder of the firm, is outstanding in understanding his clients' sector and their needs, enabling him to provide really customised/concrete advice. He's also responsible for keeping firm's high-quality standard of deliverables. Ademir Antonio Pereira Junior combines a strong academic background (in Brazil and abroad) and business acumen, which leads to precise/valuable advice even in complex situations. Luiz Felipe Rosa Ramos is a rising star in the firm's constellation.’
‘The team at Advocacia del Chiaro is highly specialised in complex antitrust matters. From the first meetings I had with them, I noticed their extensive knowledge of the sector and their clients' businesses.'
‘Ademir Pereira is the partner with whom I worked the most. Among his main characteristics, I can highlight that he conveys a lot of confidence in the opinions and ideas he gives. In a complex litigation we worked on, we had to navigate both negative and positive outcomes; and, in both scenarios, he always remained calm, good humoured and clear about his ideas. Considering that knowledge of competition law is something that we consider a basic prerequisite, it is these other characteristics that make great lawyers stand out.'
‘Alma expertise in competition law. Focused on business needs. Creative and purposeful in the search for better alternatives and business opportunities. Integrity and respected by the community. Excellent dialogue with competition bodies.'
‘Ademir Pereira Júnior is one of the greatest experts in competition issues in the country.'
‘Very close to senior partners. High technical expertise, good availability and competitive fees. Industry knowledge.'
Key clients
- ArcelorMittal
- Audi
- Ericsson
- Kimberly-Clark
- Mondelez
- Volkswagen
- Renault
- Lundbeck
- Alcoa/Arconic
- Nutanix
- Tokio Marine Kiln
- Gilead Sciences
- Mahle Metal Leve
- Trafigura
- Randon
- Banco Fibra
- Banco Inter
- TecBan
- Ebanx
- Associação Neo
- Algar Telecom
- Höegh
- Polyplex Corporation
- Smartfit
- Positivo Tecnologia
- Banco Safra
- Heineken
- Promon
- Localiza
- Descarpack
- ONET
- Oji Group
- Superlógica
- Contabilizei
- Uol/PagBank
- Orient
- Banco Santander
- ABIPAG
- Syngenta
- Promedon
- SCJohnson
- Toyota Boshoku
- Promedon
- SCJohnson
- JCA
- Interalli
- Hospital Oswaldo Cruz (HAOC)
- Seedcorp HO
- Pátria Investimentos
- Loft
- Agrocerrado
- Claxson
- Nitsuko Electronics Corp
- Epay
- Águia Branca
- Milhão
- Sindicato Nacional das Empresas de Transporte e Movimentação de Cargas Pesadas e Excepcionais - SINDIPESA
Work highlights
- Advised ArcelorMittal on the notification of its acquisition of Companhia Siderúrgica do Pecém – CSP.
- Acted for Ebanx in a multijurisdictional case against Visa with ramifications in several Latin America countries.
- Represents Banco Santander in three civil damage claims related to the alleged foreign exchange cartel (FOREX).
Lawyers
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
José Del Chiaro
Advocacia Del ChiaroNext Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Ademir Antonio Pereira Júnior
Advocacia Del ChiaroLuiz Felipe Rosa Ramos
Advocacia Del ChiaroPractice head
The lawyer(s) leading their teams.
José Del Chiaro, Ademir Antonio Pereira Jr