| Registered | Name | Holder | Registrar |
|---|---|---|---|
| 2011-09-28 | fostop.fi | Nordkalk Oy Ab | Ascio Technologies |
| 2010-03-10 | kalkki.fi | Nordkalk Oy Ab | Ascio Technologies |
| 2008-03-26 | tytyrinkaivos.fi | Nordkalk Oy Ab | Ascio Technologies |
| 2007-08-28 | norfrakalk.fi | Nordkalk Oy Ab | Ascio Technologies |
| 1998-01-21 | nordkalk.fi | Nordkalk Oy Ab | Ascio Technologies |