Top Brass
I think, I am able to shed some light of this mystery. Topbrass is not an airline or operator but a charter broker but with a structure of a 121 carrier. AOC is under Skypower, which is basically a dead AOC holder, originating out of former Nigerian Airlines. 2 HS-125's one 1000 owned by NAC, Lanseria the other one owned by some private 3rd party entity. The 4000, they proudly present on the website, is owned by a company called Jaguar Jets, which is an offshore company represented by DTD services. As to my knowledge DTD is operating the a/c themselves. Owner of Top Brass is Roland Iyayi (may have misspelled here), former Aero executive, which got sacked in the restructuring process of the company. So was the current Chief Maintenance and the Chief Pilot. Lots of Rumors but nothing good, even though I have not heard of any defaults on expat pilot salaries.