They don't 'own' 2 B744F, but they have substantial head lease on 2 a/c but sub-contract the flying to TNT. EK Freighter fleet details, available from various sources across the web:
OO-THB -> pure wet lease from TNT (in TNT orange colours)
OO-THC -> dry leased by EK from AirCastle (was Guggenheim), in EK colours, operated by TNT on sub-contract alongside THB and OO-THA (TNT's own aircraft - also in Orange livery)
OO-THD -> same as THC in EK livery.
Atlas wet leases (now) 4 various tail number B744F to EK as well. (Used to be 5 and a -200F too.) Some of these also in EK livery, some in Atlas livery (N493MC?)
EK sold their 3x A310F to Kuzu recently, and also just received first B777F (A6-EFD) and another to come this summer. (All in Ek livery on A6 reg)
Same EK pax B777 crews fly the B777F.....