The Klux delegation had already been given time to go over the agreement before Terminus arrived. They weren't asking for any modifications, so this signing process was more of a formality than a negotiation. They weren't in a position of power to be demanding more and were honestly flattered that the Reavers would even consider letting them join such a Trade Alliance.
The official document was placed on the table after the meticulously cleaned plates were gone. Lord Joseph didn't waste any time verifying that it was the same as the digital copy he had received, then signing.
The document was then scanned and uploaded, letting all the Reavers know that Klux was now a member of the Trade Alliance, along with an attached note that they would soon have high-end and highly durable common-grade dishes for trade, as they had in the past.