Cathay Pacific Airways is increasing its commitment to the Airbus A350-900 to 36 aircraft with the decision to take six more of the Rolls-Royce-powered widebodies.

The deal for the additional aircraft is work $1.6 billion at list prices, but the airline says it has received “significant price concessions.”

The six aircraft are scheduled for delivery in 2016 and 2017. Delivery of the original 30 aircraft ordered in 2010 is scheduled for 2016 through 2019.

Cathay says the deal was struck to “replenish and expand the fleet capacity” of the airline. The aircraft “will principally serve long-haul destinations in Europe.”

The deal is the first A350 transaction for Airbus this year.