AP Moller-Maersk has revealed plans for a multi-billion-dollar upgrade to its containership fleet and laid out its revised ambitions in the tanker market.

The world’s largest shipowner intends to invest $15bn over the next five years to upgrade and grow its box fleet.

Maersk Line will spend the cash at a rate of $3bn per year to order new vessels, containers and retrofit its fleet to boost performance, chief executive Soren Skou says.

While