Referent list:
-Konti Hidroplast- Gevgelija- North Macedonia (factory for plastic pipes)
-Iskra- Kumanovo - North Macedonia (steel construction factory)
-Sasa Mine- M.Kamenica - North Macedonia
-Toranica mine-M.Kamenica- North Macedonia
-Bucim Mine-Radovis-North Macedonia
-Vardar Dolomiti-Gostivar (nonmetal mine)
-IGM -Kavadarci-North Macedonia
-Mitel steel-Skopje- North Macedonia (metal industry)
-Beton-Skopje-North Macedonia (construction company)
-Prva petoletka-Trstenik -Serbia (hydraulic, pneumatic and electro devices and systems)
-Tatra-Krushevac -Serbia (metal industry-civil $ military)
-Kurum -Turkey-(metal industry)
-Knuf-Austria
-PAl-Podgorica-Montenegro(contruction company)
-Brodogradnja BSI -Split-Rieka-Croatia (( ship construction & service center)
-Brodoremontni centar Kraljevica-Croatia( ship construction & service center)
-Halkitis-shipyards-Greece (ship design & repairs)
-Titan Greece
-Retire s.a. -Drama-Greece (tire recycling)
-Kumitis-Greece