The modernization program included the partial shutdown of the former dump for red slag and building a system for dry slag depositing, the company said in a press release.
Between 2007 and 2009, the alumina refinery underwent technical and environmental upgrading. Alum employs 600 people and produces 600,000 tons of alumina per year.
Alum Tulcea is part of the Vimetco group, registered in the Netherlands. Vimetco owns an 84.19% stake in Romanian aluminum producer Alro, through which it indirectly controls 99.37% of Alum.