Well if it was a scam as you imply I would think they would need skill for that too lol.
MMEX has signed several companies including VFuels to assist in construction.
VFuels will be building components in a modular fasion and assembling them on sight. They recently expanded they're fabrication facility.
Here's the news release on their website-

http://www.vfuels.com/news/vfuels-vgas-add-facility