Bluebirde 2000, you make it sound as if NAS only started flying aircraft last month
National Air Service (NAS) is a ground handling company, about 10 years ago they became the Middle East portion of Net Jets, NetJet Middle East (NJME), this is the section of the company that if offering 35/31.
Following that they got into aircraft management, BBJ's etc.
Following that they operated GACA/FAR135 services between RUH-JED as Al-Khayala.
Following that, they were awarded a low cost GACA/FAR 121 certificate last month to operate within Saudi Arabia.
So back to the original question, do a PPrune search on NetJets Middle East and you will find lots of threads. They have just ordered a huge number of Hawker 750 aircraft.
Mutt