I am not suggesting it is a rebadge job .... however, Naim do not manufacture cable wire .... I suspect that the cable is sourced and then terminated with their bespoke plugs. Also naim will have tested loads of cable types before selecting. Thus is nothing to be ashamed of .....
This may be true, But I think I know a Company that is familiar with Naim:
"The Chord Company was formed in 1984. It all started over dinner one night in Salisbury, when a group of visiting Naim Audio USA retailers asked Naim Audio UK for a good-quality DIN-to-RCA interconnect. At the table, was one Sally Gibb, then married to a Naim Audio executive, who made the (historic) suggestion that she make the cables and start a business. With the blessing of Naim Audio, the journey to make cables for America began.... ""
Enjoy your Music!