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Projects

Projects in three Salta salars:

RÍO GRANDE (Flagship Project): 43,000+ ha

ARIZARO: 44,000 + ha

SALINAS GRANDES: 9,200 + ha

RÍO GRANDE HIGHLIGHTS

>> 43,000 ha in and around the salar; 2nd largest position after Pluspetrol

>> Next to Pluspetrol’s (formerly LSC) already explored project

>> NI 43-101 report by LSC in 2018:

>> Geoelectric studies, surface and drill holes  (only up to 100 m)

>> Lithium values of more than 350 mg/l (often +450)

>> Avg. Mg/Li ratios ~5

>> Huge potential for growth in alluvial area

>> Exploration camp available

>> Good access road and nearby railway

RÍO GRANDE SIGNIFICANT EXPLORATION UPSIDE

Prospective areas at the Río Grande salar include north, central (depth), south and southeast

>>  Alluvial cones (northern region)

>>  Recharge area (northwestern region)

>>  Evaporitic bed (central region)

>>  Foothills sediments / alluvial fans (southeastern region)

The alluvial cones and foothill sediments show depth continuity of the evaporitic bed and saline phreatic levels

*Comments From LSC’s (Pluspetrol) Technical Report

RÍO GRANDE SAMPLING / DRILLING

>>  Several of the prospective surface and diamond drill hole samples analyzed in LSC’s report are right at NOA properties’ border limits

>> Maximum depth drilled to-date is ~100 m and most of these intercepts are +350  mg/L Li

*From LSC’s (Pluspetrol) N43-101 Report

RÍO GRANDE CSAMT RESULTS

>>  Using CSAMT (conductivity), two large areas were defined that could contain deep depositional centers that are open >500 m

>> The depositional centers are more conductive = more brine potential = good Li potential

*From LSC’s (Pluspetrol) N43-101 Report

RÍO GRANDE ONGOING EXPLORATION
RÍO GRANDE GEOPHYSICS (VES) & SAMPLING

>>  Surface samples with strong Li values, in-line with adjacent properties’ results (350 mg/l)

>>  Brine close to the surface in the properties within the salar

>>  North & northeast properties with brine potential deeper than in salar

>>  Basement depth assumed to be deeper than 300 m

>>  Potential water sources have been identified on NOA’s claims

>>  Potential brine-saturated zone (yellow) identified over 1.5 km at 300m depth on NOA Claim #2 (north & outside of salar)

>>  Entirely brine-saturated zone over 1.9 km from surface to +300m depth on NOA Claim #11 (west edge / outside of salar)

RÍO GRANDE DRILL PLAN

>>  6 coreholes (~500 m each) in two phases (start 1Q23)

>>  Approximate locations of first three shown here

>>  Determine if any additional holes needed based on results (on-going)

>>  Prepare model for initial resource estimation (target 4Q23)

RÍO GRANDECAMP & SITE INFRASTRUCTURE

>> Ready to operate camp

>> Capacity for 50+ workers

>> Good access road

>> Fresh water on camp

>> Next to “Mariana”, “Lindero” and “Taca Taca” projects

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ARIZARO HIGHLIGHTS

>> One of the least explored salars in Argentina; NOA has 44,000 ha at the salar

>> Next to Lithium Chile’s already explored claims (w/ >500 mg/L Li at depth): Other companies on salar: Pluspetrol, Eramet, Tibet Summit, Hanaq

>> Close to Arizaro railway station + good road access

>> Next steps – Geophysics / sampling program followed up with initial drill program (2023)

ARIZARO CSAMT RESULTS

>> Lithium Chile drill results + CSAMT lines proximal to NOA indicate robust Li >300 m deep & indicate brines continue into alluvial zones east of salar

ARIZARO 2D RESISTIVITY PROFILE (CSAMT)

>> LITH CSAMT results, in combination with drill results, show good potential for more saline brines (lower resistivity)  —  proximal to NOA claims

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SALINAS GRANDES HIGHLIGHTS

>> 9,200 ha in the alluvial and in salar

>> Surrounded by properties already explored by Orocobre (later LSC and now Pluspetrol)

>> NI 43-101 report by LSC in 2013

>> Excellent geophysics results in TEM and VES done by NOA

>> Located by RN 40 and 25 km away from RN 52 (fully paved)

>> Only 40km away from San Antonio de los Cobres railway station

>> Close to Puna gas pipeline

SALINAS GRANDES VES RESULTS

>>  Brine potential (yellow) at sub-300m depth both in the salar in the alluvial

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Rio Grande 2022 Technical Report