Bank Islam Brunei Darussalam aims to raise as much as $500 million in an initial public offering (IPO) and the bank will be listed on the Malaysian bourse. JPMorgan and Malayan Banking (Maybank) are set to be joint global coordinators for the initial public offering of $200 million-$500 million this year. The IPO is expected to raise around $300 million but the final amount will depend on the size of the greenshoe option. Brunei is one of the world's richest countries on a per capital basis. The country does not have a stock exchange although its central bank last year announced draft rules to form one.