The VEGA Processing Complex is a staging area for local hemispheres of the planet where all the planetary fleets assemble, including anti-matter for the VEGA Corporation. After every 10 minutes VEGA Fleets are dispatched and launched from the processing complex, then out of the planet into the sector space where they transport resources through the wormholes to unknown destinations.
VEGA fleets entering the wormhole do not emerge from the otherside.
It's likely the processing complex not only acts as industrial refinery for raw materials, but also facilitates ship construction, maintenance and development. The processing complexes currently cannot be attacked.