Aluminium Bahrain has announced plans to raise as much as $541m from an initial share sale, Bloomberg has reported. Mumtalakat Holding Co., Bahrain's sovereign wealth fund, plans to sell as many as 163.3 million shares between Oct. 24 and Nov. 4 in the IPO, Aluminium Bahrain, known as Alba, said in a statement. Retail investors will be offered shares at 1.25 dinars apiece and institutional investors between 0.9 dinar and 1.25 dinars.