All I can tell you is the hole pattern isnt right for a GEN2 MINI (post 2007) how its assembled there, A GEN2 MINI needs the 2 holes outermost on the rings which is opposite to how you show here.
Now whether you can swop the ends over side to side to correct this I dont know but it doesnt look like it
Tower centres on a GEN2 are around 1150mm ish
A GEN1 MINI (pre 2007) will probably be different as its a slightly smaller body than the GEN2?
If DINAN cant tell you exactly what it supposed to fit and they made it I dont think I would want to risk buying it.
Ive never heard of the make before myself.