They're not done yet, signing-agreements-wise!
Keltham has now produced a non-disclosure agreement between the Project's employees including himself, and the Professional Alchemist, if the Professional Alchemist is willing. He sent it off to Cheliax last night, and they made a few corrections that seem fine to Keltham and sent it back signed on their own behalf this morning. Cheliax is signatory because the NDA also binds, for example, nearby Security, and anybody who's allowed to read transcripts.