"The new subsidiary, British Airways Limited, is securing its own air operator's certificate and operating licence. It will operate the two Airbus A318s in the fleet under a wet-lease arrangement with British Airways."
On a related note, why does British Airways still refer to itself as a PLC when it's shares are no longer traded? it's stock market symbol was made redundant with the formation of IAG, and you can only buy shares in the parent company.