Arāk (Persian: اراک, IPA: [æˈɾɒːk]), also known as Sultan Abad (Persian: سلطان آباد - Soltān Ābād), is a city in and the capital of Markazi Province, Iran. At the 2006 census, its population was 526,182, in 160,761 families.Arak is one of the major industrial cities in Iran. The city has a lot of different industry sites inside and within few kilometers such as Mashinsazi, Aluminum Factory, Vagonpars,Azarab company, Petrochemical company and many more.