Reference
- Fabrika kartona A.D. "UMKA" www.umka.rs
- AVALA ADA A.D. www.ambalazaipakovanje.com
- Jaffa AD Crvenka www.jaffa-ad.com
- VALY doo. Belosevac
- TITAN Cementara Kosjeric A.D. www.titan.co.rs
- NEXE Grupa www.nexe.rs
- Sunoko d.o.o. www.sunoko.rs
- XELLA SRBIJA AD www.xella.rs
