The system was founded by 21 companies who became our shareholders. These are: Pivovarna Union, Fructal, Coca - Cola Beverages Slovenija, Ljubljanske Mlekarne, Tetra Pak, Poslovni sistem Mercator.
At the end of June we got 9 more shareholders which are: Mlekarna Celeia, Tobacna Ljubljana, Henkel Slovenija, Viturm. Therefore, now the system has 30 shareholders; most of them are fillers.
The system Slopak was authorised by the Ministry of Environment in July 2003