MAL Hungarian Aluminium (Hungarian: MAL Magyar Alumínium Termelő és Kereskedelmi Zrt.) is a Hungarian company that was specializing in the production of aluminium and related products. It was established in 1995 on the privatization of the Hungarian aluminium industry.
MAL's initial assets were the Bakony bauxite mine, an alumina factory in Ajka and an aluminium smelter in Inota (municipality of Várpalota), all of them in Veszprém County northwestern Hungary. The company set up subsidiaries in Germany and Romania, and acquired majority holdings in the SILKEM, producing zeolites and ground alumina in Kidričevo, Slovenia, and Rudnici Boksita Jajce, which operates a high-grade bauxite mine near Jajce, central Bosnia. The smelting facilities at Inota were converted into a recycling operation in 2006, and sold off as INOTAL Aluminium Processing Zrt. in 2007.
On 4 October 2010, a retaining dam failed on one of the red mud ponds at the company's Ajka alumina factory, spilling 600,000–700,000 cubic metres of highly alkaline and corrosive (caustic) red mud arising as a residual product from the treatment of bauxite with sodium hydroxide. At least ten people died, and about 150 people were injured, in the nearby settlements of Kolontár and Devecser.
On 13 October 2010, the government nationalized the company, the bill making this possible having been passed by the Parliament one day earlier.
In 2013 the company went under liquidation. The production facilities were all sold to IC Profil Ltd., so no production is undertaken by the company anymore. However, the company still owns the sludge storage facility (not in active use anymore due to the recent change in technology), and various buildings on its Ajka site. The company still has not finished liquidation also because of the legal proceedings brought against it that have not closed yet.