| Company | Role | Joined | Share Capital |
|---|---|---|---|
| CONCRETON SERVICOS DE CONCRETAGEM LTDA | Sócio (22) | 8/15/1996 | |
| IBRATA MINERACAO LTDA | Sócio (22) | 1/27/1995 | R$ 7,200,000.00 |
| IPUA TRANSPORTES LTDA | Sócio (22) | 9/4/1991 | R$ 514,000.00 |
| NACAO MATERIAIS DE CONSTRUCAO LTDA | Sócio (22) | 12/28/1994 | R$ 200.00 |
| RIO BRITA LTDA | Sócio (22) | 1/31/2001 | R$ 2,500,000.00 |
| RIOMIX MINERACAO E SERVICOS LTDA | Sócio (22) | 1/3/2012 | R$ 250,000.00 |
| RX LOGISTICA LTDA | Sócio (22) | 12/3/2007 | R$ 100,000.00 |