Real World article
(written from a Production point of view)

In the final draft script of the Star Trek: Enterprise episode "The Shipment", the processing matrix was a part of a Xindi kemocite refining station on a Xindi-Arboreal colony.

In ultimately excised dialogue from the script of "The Shipment", the second Arboreal told the third Arboreal that he himself hadn't checked the processing matrix yet. This technobabble was spoken as the pair of Xindi-Arboreals walked away from Gralik Durr's home, not having found him there, because Gralik was hiding from them.