[tzs]

It is not clear to me from that what the relationships are between company A, the EU subsidiary (which I'll call S), and the US cloud provider (which I'll call C).

1. Would A be dealing directly with S, or is A dealing with C which is using S to store A's data.

2. Is S incorporated in the EU?

3. Does C have access to data stored in S, other than data that C itself put there using the APIs that S makes available to all its storage customers?