Net profit fell 20% to RON3.2 million in 2012, from RON4 million in the previous year.
Alumil said its financial results for 2012 are preliminary and were drafted in accordance with the International Financial Reporting Standards (IFRS).
Alumil is 55.9% owned by Greek group Alumil, while board chairman Michail Sotiriou holds a 23.95% stake.
On the Bucharest bourse Thursday, Alimil traded at RON1.249 per share.