Lithium Argentina AG

For the period ended Dec 31, 2025. Filed Mar 20, 2026.

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Dec 31, 2025 · Filed Mar 20, 2026

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LAR$4.25+4.4%Stored close · as of Nov 6, 2026

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Contents

EX-99.1 · Table 52: Analysis Result of Stripping Solution

Table 52: Analysis Result of Stripping Solution

No.	Li	Na	K	Ca	Mg	B	SO42-	Unit
1	19.16	3.55	0.098	0.150	0.080	2.02	3.78	g/L
2	16.02	1.84	0.080	0.110	0.042	2.08	2.66	g/L
3	17.05	2.09	0.110	0.120	0.044	1.99	2.52	g/L
4	18.19	2.04	0.073	0.120	0.044	1.94	2.42	g/L
5	18.54	2.13	0.070	0.130	0.052	1.91	2.34	g/L
6	18.89	2.18	0.090	0.140	0.080	1.88	2.51	g/L
7	19.54	2.04	0.065	0.120	0.051	1.79	2.46	g/L
8	19.57	1.98	0.055	0.120	0.049	1.77	2.41	g/L
9	19.64	2.43	0.073	0.130	0.062	1.87	2.33	g/L
10	19.68	2.37	0.073	0.130	0.060	1.87	2.29	g/L
11	19.79	2.41	0.085	0.130	0.060	1.87	2.29	g/L
12	20.05	2.58	0.120	0.140	0.067	1.86	2.36	g/L

Table 50 to Table 52 show that the lithium content in PPG brine decreased from 3.35 g/L to 0.286 g/L after extraction. Stripping resulted in a product lithium concentration of 18.84 g/L. Lithium concentration can reach over 20 g/L by adjusting the conditions, Na about 2.2 g/L, B 1.9 g/L, sulfte 2.4 g/L, while other impurities are about 0.1 g/L.

Lithium Argentina AG, Scoping Study Report
PPG Salars, Argentina	163

Sodium is extracted during the process, particularly when the lithium concentration is low. The recycling of strip solution to organic wash will control the sodium so that it will not affect its quality.

This test work has been running for 694 hours, with no abnormalities.

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