The Central Cooperative Union (CCU) is a national union of voluntarily united cooperative unions and through them of consumer and other cooperatives. The Cooperative Union has over 40 stores on the territory of Bulgaria.

The sites work with commercial software for Detelina Premium stores, fiscal printers and cash registers ELTRADE. The full set of POS peripherals is also from Eltrade – POS printers, barcode scanners, mobile terminals, POS terminals, UPS, electronic scales, customer displays and banknote safe.