The Rijeka Refinery has been transformed into one of the most technologically advanced facilities in the region.
The new Delayed Coker Unit (DCU) eliminates the need to import vacuum gas oil (VGO), and the share of diesel in total production is expected to increase by approximately 30 percent.
As posted on the MOL group website, INA has marked the completion of the Rijeka Refinery Upgrade Project. The modernization involved an investment of nearly EUR 700 million, representing the largest single investment in INA’s history and one of the biggest industrial investments in modern Croatia.
The ceremony marking the completion of the refinery modernization was attended by representatives of the Government of the Republic of Croatia, the Government of Hungary, ambassadors from several countries, representatives of regional and local communities, and the management of INA and MOL Group. Prior to the ceremony, a Grant agreement was signed with the Ministry of Economy under the National Recovery and Resilience Plan for the construction of a green hydrogen production plant at the Rijeka Refinery, signalling further investments in sustainable development.
“A modern facility like this will support our transition to a lower-carbon economy. INA is already implementing renewable energy projects, and by the end of the year, a commercial green hydrogen production plant will be built here on site, the first of its kind in Croatia,” said Zsuzsanna Ortutay, President of the Management Board of INA.









