After three years of targeted exploration, REN delivered this week a Maiden Mineral Resource estimate for the Fen carbonatite complex in the country's southeast.
The South American country, part of the so-called "lithium triangle" along with Chile and Bolivia, has attracted investments from foreign companies in Canada and China.
Comments pour some cold water on the notion of a swift roll-out of technologies that offer cheaper, faster and greener ways to extract lithium in South America.
The trades are part of a broader deluge of investment into the copper market, with the value of long positions held by fund managers in London and New York futures tripling this year.
