Cordoba, Argentina
Source: Adobe Stock
The Market Online - At The Bell

Join our daily newsletter At The Bell to receive exclusive market insights

Patagonia Lithium (ASX:PL3) has seen its shares spike up more than 42% following its release of a maiden inferred mineral resource estimate (MRE) of 3.8 million tonnes of lithium carbonate equivalent (LCE) for the Formentera lithium brine project in Argentina.

The MRE, which is specifically measured at 3,816,000 tonnes of LCE based on an in-situ lithium metal resource of 717,000 tonnes, puts Formentera in a strong position among other Argentinian lithium plays.

Also revealed in the MRE announcement was the fact the project contains 173,000 tonnes of LCE in free-flowing and capillary areas, enabling Patagonia to plan for a 15-year mine life for the project, producing 10,000 tonnes a year.

Crucially, 85.82% of the MRE’s total brine volume is above a 100-ppm lithium cut-off grade (COG), of which the surface siliciclastics domain comprises 0%, the main salar domain comprises 86.07% above COG, and the high porosity salar domain comprises 100% above COG.

Drilling work is ongoing to enable upgrades, with a focus on the Cilon concession where sub-surface samples of 1,122 parts per million (ppm) lithium have been collected.

Patagonia will be undertaking infill drilling and a range of surveying activities – including a differential global positioning system (DGPS) survey and light detection and ranging (LiDAR) surveying – to upgrade the resource from the inferred category.

Executive chairman Phillip Thomas said the MRE numbers provided Patagonia with optimism and a robust resource to work with.

“We are delighted to announce this robust maiden JORC resource estimate of 3.8 million tonnes LCE,” he said.

“With 717,000 tonnes of lithium metal insitu which confirms our Formentera project as one of the best-undeveloped projects in Argentina with superior brine volumes, specific yield (Sy), high porosity and lithium grades.

“The board will now progress its exploration, application for a demonstration plant, a
scoping study and then definitive feasibility study with results from further exploration.”

Patagonia shares last traded at 12 cents each after rising 42.48%.

Join the discussion: See what HotCopper users are saying about Patagonia Lithium and be part of the conversations that move the markets.

The material provided in this article is for information only and should not be treated as investment advice. Viewers are encouraged to conduct their own research and consult with a certified financial advisor before making any investment decisions. For full disclaimer information, please click here.

pl3 by the numbers
More From The Market Online
ASX Earnings concept

Week 8 CY26, Wrapped: Unusually quiet Trump amplifies ASX earnings, but Iran fears growing

It’s been an interesting two weeks, largely because we haven’t heard too much from Donald Trump lately.
The Market Online Video

Prospect Resources on ‘the copper capital of Africa’ and the tier-one mining potential in Zambia

Prospect Resources joins HotCopper to talk about why it's been looking into the underlying geology at…
The Market Online Video

Australian Gold and Copper: Maiden resource complete, growth story continues

HotCopper talks to AGC MD Glen Diemar as precious and critical metals explorer Australian Gold and…
The Market Online Video

HotCopper Highlights, Week 8: Zip unfastened; Coles in trouble, BHP’s India pivot & more

Good Afternoon and welcome to the latest edition of HotCopper Highlights where we go through the stocks and announcements you were watching this week on