When Jake successfully deposed the RDA mining operation, he assumed that it would be some time before the RDA would successfully mount a counter-invasion by analyzing data about Earth’s Unobtanium stores. What he failed to consider was the discovery of amrita, a chemical compound found in Pandora’s ocean-dwelling Tulkun population that effectively stops human aging.

Discovered by Dr. Ian Garvin and named for the Sanskrit word for immortality, amrita is extracted from the brain of dead Tulkun using specialized tools which are equipped on the RDA’s SeaDragon ships. These roving Tulkun-hunting platforms form the backbone of the RDA’s Cet-Ops program, seeking out and collecting amrita for shipment back to earth.

Amrita is the single-most valuable known substance in existence, with a single harvested vial fetching more than $80 million.