A partnership agreement between Air China and Cathay Pacific is being extended by three years until December 2016.

The two carriers, which have been co-operating since 2008, said the new deal would run from January 1.

A joint statement today said: “The co-operation between Air China Group and Cathay Pacific Group is expected to continue to further the development of Beijing Capital International Airport and Hong Kong International Airport as gateways to and hubs for mainland China and will assist Air China Group and Cathay Pacific Group in their efforts to optimise the allocation of operating resources.”

Air China is a 29.99% shareholder in Cathay Pacific, while Cathay owns 20% of its Chinese airline partner.