Reading between the lines..They are looking not just for financing, but for "technical epxertise....marketing.."
Unlikely something like VW. Probably present large scale miner (Not LAC).
My guesses: SQM - they have connections and SQM is looking to diversify from Chili, where investment climate got so much worse.
Albermarle - that is looking for brine to diversify from rock
but my first choice will be Livent - because they are in similar category (Argentina + brine) and per Financial Times they looking for aquisition in Argentina (and Australia)
Possible NLC has two of them and getting counter-proposal ready to find higher bidder.
Freakig awsome in that case!
https://www.ft.com/content/d3935162-509f-11e9-9c76-bf4a0ce37d49