Siqueira Castro – Advogados has developed a strong dispute resolution practice, increasingly attracting clients from the agribusiness, financial, and tech industries. Known for its effective handling of a wide range of disputes, the team stands out in areas such as debt recovery, white-collar criminal defense, and conflicts involving contracts and shareholders. The Brasília practice is led by Marina Araujo Lopes, whose extensive expertise in civil, administrative, and regulatory law underpins her work in high-level business litigation before the superior courts.
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Key clients
- AMSTERDAM SAUER LTDA.
- WHITE MARTINS GASES INDUSTRIAIS LTDA.
- TOYOTA DO BRASIL
- IBP - Instituto Brasileiro de Petróleo e Gás
- CEG – Companhia Distribuidora de Gás do Rio de Janeiro
- STEMAC S/A Grupo Geradores
- SLAVEL DISTRIBUIDORA DE AUTOMÓVEIS LTDA.
- ASSOCIAÇÃO BRASILEIRA DA INDÚSTRIA DE ÁGUAS MINERAIS - ABINAM
- USINA CARAPEBUS
- CNEN PROJETOS DE ENGENHARIA S.A
- Sotech Serviços em Informática Ltda.
Work highlights
Representing CEG – COMPANHIA DISTRIBUIDORA DE GÁS DO RIO DE JANEIRO in a civil action in the public interest filed by the Federal Attorney’s Office against CEG, the director of a tax advising company and members of the IRS.
Defends the interests of the Instituto Brasileiro de Petróleo e Gás - IBP, in Direct Action of Unconstitutionality and in Declaratory Action of Constitutionality, proposed in relation the purpose of the regulatory agency of the matter in Brazil, the National Agency of Petroleum, Natural Gas and Biofuels - ANP.
Represents TOYOTA DO BRASIL LTDA in a popular lawsuit in which the plaintiff claims that there has been damage to the public treasury caused by the maintenance of a benefit of reducing the import tax rate provided by law, even after the internalisation of an international agreement that increased the rate of the same tax.
Practice head
Marina Araujo Lopes