Carbonautica's manufacturing facility is in the City of Velenje. Slovenia's 5th biggest city, it is the centre of the Municipality of Velenje with approx. 30.000 habitants. Established in 1959, City of Velenje has made tremendous efforts to recultivate landscapes ruined by coal exploitation and turn handicap into advantage. Velenje lakes have become a tourist attraction and recreational centres abound including the  city's famous 75 metre championship Ski Jump.The area of present Velenje was first mentioned in 1250.

The city boasts a highly skilled and educated workforce.            .