Sion Advogados stands out for its consistent technical excellence and multidisciplinary approach, offering strategic legal solutions in various areas of law. Its performance in the environmental and mining sectors deserves special recognition, where it combines in-depth technical knowledge, practical vision, and complete adherence to regulatory and market dynamics.

However, limiting the firm’s excellence to its expertise would only reiterate what is already widely validated by rankings and specialized publications, such as Análise Editorial and The Latin American Lawyer.

A key differentiator is the high level of availability and approachability of the founding partner, Alexandre Sion, whose accessible and direct approach strengthens the relationship of trust with clients. This proactive presence significantly contributes to greater agility, a better understanding of strategic demands, and a level of service above average.

The combination of technical expertise, strategic vision, and highly personalized service positions the firm as a trusted legal partner, capable not only of ensuring compliance but also of generating concrete value for the business.

I’ve had the opportunity to be treated by Dr. Alexandre and his team on various occasions, always with a high level of excellence, professionalism, and attention to the client’s needs. He is a highly respected professional in the legal field, with extensive experience and recognized authority in the environmental field. His practice is guided by technical rigor, ethics, and a commitment to results.

Alexandre Sion is a professional I have had the pleasure and privilege of working with. First, together at Vale and then as a direct report at MMX and Anglo American. Leadership and the ability to manage people and strategic projects are natural abilities. He is an excellent professional and a person of integrity in his values and convictions, with intense experience in the law.

Alexandre is an outstanding student. During the time we studied together in Davis, California, I could realize that he is very disciplined, organized and is always looking for opportunities to learn and share knowledged with his colleagues. I should also mention his extra class behavior – he was perceived as a leader, organizing activities and always being available to help and cooperate with his classmates.

I can most certainly recommend Alexandre as a highly skilled and efficient lawyer who has deep knowledge in international commercial law and especially environmental law issues. As a person Alexandre is very outgoing and social with good teamwork skills.

Alexandre is a first-rate professional. I had the great opportunity to work with him at Vale, me in the maintenance department and him in the legal department. Whenever I turned to him, he was always able to give me answers in a short space of time, with a great deal of background information, so that we were always on the right side of the situation. He is ethical, proactive and keeps up to date.

Highly focused and extremely dedicated, ALexandre is certainly one of the best in-house lawyers I have ever met. I strongly recommend him in the environmental law field.

Dr. Alexandre Sion is focused on results and excellent customer service. With a systemic vision, he directs his processes and management in a coherent manner. I had the great pleasure of working with him at Vale, when we exchanged a lot of knowledge in everyday situations and in crises. I recommend this professional.

Alexandre is a good lawyer and a good manager, who is making a valuable contribution to our company.

Alexandre is a great friend. He is an excellent professional and very determined in his goals. I’ve been following his professional life for 5 years now and I can say that his career is on the up and up. I recommend him highly!

Alexandre Sion is one of the best professionals I have ever had the opportunity to work with. An in-depth student of environmental law, he has a mastery of the subject like few others, as well as an excellent strategic ability to handle high-profile cases.

Alexandre is a distinguished professional with whom I would like to have the opportunity to work again. In addition to his mastery of his field, he has a unique ability to manage teams and a natural ability to positively influence his colleagues. Dynamic and with a strong systemic vision of the business, Alexandre exceeds expectations with his commitment and dedication.

Alexandre is one of the most talented people I’ve ever met. He not only works hard, he also works smart. I strongly recommend him as the best lawyer.