It's a BA contract with KF that runs from 1 July through 15 November or so. Because the A330-900 is uniquely configured the outsourcing deal is dedicated to 295/294 service, and ironically has made these flights more reliable and less cancel-prone than when BA was operating them. AFAIK from FlightAware they have operated faithfully since Air Belgium got custody, whereas in the first half of 2023, with BA 77Ws mostly, they were cancelled about 30% of the time.