DP World’s controversial history of P&O ownership

Sultan Ahmed bin Sulayem, chairman and group chief executive of DP World. Photograph: Abdel Hadi Ramahi/Reuters

When Dubai Ports Ltd first bought up the ports and ships of P&O 16 years ago, the question that preoccupied a country reeling from the 2005 Islamist terrorist attacks was Britain’s physical security.

Now, the questions are focused on the economic security of Britain’s workforce.