On April 24 Sergio André participated in two seminars on tax planning, together with Professor Marco Aurélio Greco. The first seminar was organized by the Bar Association in Rio de Janeiro, while the second was organized by the Tax Prosecutors Office (”PGFN”). These seminars marked the release of the books “Tax Planning in Marco Aurélio Greco’s Theory” (“Planejamento Tributário na Obra de Marco Aurélio Greco”), authored by Sergio André Rocha, and “Tax Planning” (“Planejamento Tributário”), authored by Marco Aurélio Greco.