And for those worried about POSCO settling, just last month they were meeting Salta government:
http://www.latinomineria.com/2019/01/29/posco-anuncia-proximamente-comenzara-construccion-planta-piloto-sal
And if you're fluent in Spanish, English and have a bachelor's of environmental science or are good at liaising with the Argentinian environmental department... Jobs!
http://insalta.info/nota-principal/trenes-argentinos-y-dos-mineras-buscan-profesionales-para-incorporar-a-sus-equipos