Global aircraft operating leasing company BOC Aviation has signed a purchase-and-leaseback deal with Air China for five new aircraft.

The deal includes a combination of three Boeing 777-300ER aircraft and two Airbus A330-300 aircraft, all of which are expected to be delivered by the last quarter of this year.

BOC Aviation managing director and CEO Robert Martin said: “We are pleased to support Air China in its fleet growth and expansion plans in this transaction, which adds popular, in-demand aircraft on long-term leases to our portfolio.

"This transaction also represents incremental capital expenditure in 2016, and we continue to focus on disciplined investing to grow our fleet in line with our current strategy."

“This transaction also represents incremental capital expenditure in 2016, and we continue to focus on disciplined investing to grow our fleet in line with our current strategy.”

Air China is mainly involved in the operation of scheduled airline services.

Currently, BOC Aviation has a fleet of 483 aircraft, which are owned, managed or put on order by the company.

As of June this year, the company’s owned and managed fleet was leased to 64 airlines in 31 countries.

BOC Aviation delivered an Airbus A321-200 aircraft, which was included in its current order book, to EVA Air at the end of the last month.

Additionally, the company delivered the second of six Boeing 737-800 aircraft to China Airlines and the first of three Airbus A321CEO aircraft to Mexico’s Interjet.

All the orders were already listed in BOC Aviation’s existing order book.