This bolded one is especially messed up because they are using the
same fake address as the picture pointed out by you and Stompix. I doubt they actually have anything to do with IceRiver miners. Hopefully potential victims will come across this thread when searching for Oneminers.
One thing, because even if they are scammers, I don't want to accuse them of everything.
The address itself it not fake, the PC repair company that the guy claimed to run all these operations was indeed headquartered (operating from) that address, they did had some legit business at that address but all the pictures they put on their websites are fake the building never looked like that.
Unfortunatly I'm away right now and searching through history on a mobile I a pain in the ass but if everyone wants to dig deeper they can from here:
https://rejstrik-firem.kurzy.cz/osoba/2776359/AAA computers sro operates Pc Praha, which was indeed active sometime there, don't know when
Ice river > self-explanatory
One miner being ..... god knows which
Not that it matters much anyhow, doubt they would find gullible enough investors here