Alum S.A. operates as an alumina refinery in Romania, European Union, non-European Union European countries, and internationally. It offers calcined alumina for use in metallurgy for aluminum smelting based on electrolysis process. The company also provides aluminum hydrate for use as raw material in the production of various chemicals used in water treatment; glasses, ceramics, and refractory; and other applications. In addition, it sells scrap iron, as well as engages in utilities and other businesses. The company was incorporated in 1972 and is headquartered in Tulcea, Romania. Alum S.A. is a subsidiary of Alro S.A.