Their hardware. They have, at best, 1 supercomputer (though it's not actually clear if they have more than some Dojo prototypes to me). That does not a cloud make.

Ah yes, I see that now. But assuming they make the computer, they could also lease it to one or more cloud providers as a service. They don't necessarily have to build the whole thing.

Kind of what Cray/HPE does with Microsoft's Azure - you could get your very own Cray to run your workloads.

Sadly, not a very interesting one running UNICOS or NOS/VE...