It's a matter of semantics and legal terminology. Not all agreements are enforceable by law. You can have an agreement but not a contract. In this case they will have a contract when all the terms and conditions have been fulfilled. Before then, all they have is an agreement to acquire on paper (negotiations if you will). so "subject to" and "to acquire" mean the same thing in this context.
This press release hasn't been verified. The xiamen website picked up the story from Marketwatch due to the BFAR ticker symbol. You need to find something from the hospital as the source not a duplicate of the same pr. Not trying to belittle your findings, just stating the facts as I have been on this for quite sometime.