Not pitching that brand of wheels, but from their site:
"VMR wheels pass JWL, VIA, and ISO-9001:2000 standards to ensure the highest level of safety and quality.
For customers in Europe seeking TUV certification, the wheels are stamped on the back with the max load rating. With this stamp on the back of the wheel, you are able to have this wheel approved for use on your vehicle under TÜV standards. You will not have any issues running this wheel due to strict TÜV regulations."
VMR Wheels
All fwiw, but the OP should be able to get a decent response from them.
The 'Net has remarkable sets of info...
GL, mD