| Company | Role | Joined | Share Capital |
|---|---|---|---|
| ALFECON CONSTRUCAO E PERFURACAO NAO DESTRUTIVA LTDA | Sócio-Administrador (49) | 10/20/1999 | R$ 40,000.00 |
| EGECON ENGENHARIA E CONSTRUCAO LTDA | Sócio-Administrador (49) | 3/7/2016 | R$ 100,000.00 |
| FLEXDRILL PERFURACAO HORIZONTAL LTDA | Sócio-Administrador (49) | 3/7/2007 | R$ 5,000,000.00 |