Working Hours of UVENTRANS:

Working Hours of Administrative Office:
9:00 - 17:30, Monday-Friday 

In case of Emergency you could keep in touch with UVENTRANS at 
+359 888 943 998 (Bulgarian, German, English) 

To reach the same No., when calling from Bulgaria, please dial: 0888 943 998

Working Hours of Tank Cleaning Station:

8:00 - 18:00, Monday-Friday
Outside this working hours and on Saturday - on request only!