Foundry
From Command and Conquer Wiki
The Foundry is a Scrin structure designed to aid the Drone Platform in the creation of structures. It serves the same purpose as GDI and Nod's Cranes.
Scrin forces, having originally been intended to harvest Ichor likely had intended for Foundries to quickly expand their harvesting operations. However, with the discovery that Earth was not among the 97% of planets where Ichor growth exterminated all life, the Scrin pressed Foundries into service creating new structures for military purposes, and also to speed the construction of Thresholds. However, most of this is conjectural analysis by InOps, as there are no surviving Scrin or Scrin facilities other than Threshold 19, which is impregnable.
