| Company | Role | Joined | Share Capital |
|---|---|---|---|
| AYUSSO & RICCI S/C LTDA | Sócio-Administrador (49) | 5/18/1994 | |
| K.R. SERVICOS NEFROLOGICOS LTDA | Sócio-Administrador (49) | 3/26/2009 | R$ 10,000.00 |
| R.R. SERVICOS NEFROLOGICOS LTDA | Sócio-Administrador (49) | 6/26/2012 | R$ 10,000.00 |