SULTAN BIN SULAYEM of Dubai World on the IPO of DP World and future spinoffs

Part 1, May 1: Sultan bin Sulayem is one of the most influential business figures in Dubai. As head of Dubai World, he leads a portfolio of companies and investment funds - notably DP World, a marine port operator. DP World was floated last year on Dubai's DIFX exchange - the largest IPO in the Middle East - but after an initial burst the shares dropped steadily until March this year. In this interview with the FT's Middle East Editor, Roula Khalaf, Mr bin Sulayem defends the company's share performance and discusses his thoughts on floating further parts of the Dubai World empire.