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Orvana Argentina Commences Geophysical Survey at Taguas Project, Ar gentina

Exploration Programs

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TSX:ORV For Immediate Release

Date: November 12, 2025 #18-2025

Orvana Argentina Commences Geophysical Survey at Taguas Project, Ar gentina

TORONTO, ONTARIO, November 12, 2025 - Orvana Minerals Corp. (TSX:ORV) (the "Company" or

"Orvana") announces that its Argentine subsidiary, Orvana Argentina S.A., has commenced a geophysical

survey at its Taguas Project, located in the high Andes of San Juan Province, Argentina. The Taguas

property consists of fifteen mining concessions totaling approximately 3,274 hectares, situated within a

well-known Andean mineral belt hosting high- sulfidation epithermal gold-silver-copper and porphyry-style

deposits.

The Company is repositioning the Taguas P roject to evaluate its broader potential, extending beyond the

near-surface oxidized gold-silver resource outlined in the 2021 Preliminary Economic Assessment (dated

on December 29, 2021; available at www.sedarplus.ca) to include the underlying sulfide mineralization

and potential deep porphyry copper-gold system.

“The 2025/26 campaign marks an important milestone in advancing our understanding of the Taguas

mineral system. By combining the advanced geophysical survey now underway with insights from the

recently completed review of historical exploration data, we will prioritize key targets for our initial deep

drilling campaign, planned to start in January 2026, and establish a disciplined and strategic path toward

unlocking the system’s broader potential”, said Juan Gavidia, Chief Executive Officer of Orvana Minera ls

Corp.

2025/26 Exploration Program

The Company’s 2025 /26 Exploration Program at t he Taguas Project is structure d into three sequential

phases:

Phase Objective Status

Geological

Modeling Update

D

etailed relogging of historical

drill holes and short-wave

infrared (SWIR) alteration

studies; spectral scanning of drill

holes in the target area every 5m

Completed

I

dentified vectors toward porphyry-

style mineralization along a 2.5-

kilometre north–south corridor

extending from Cerro IV to Cerro

Campamento

Geophysical

Survey

Identify potential targets up to a

depth of 1,500 m

In progress – Expected to finish by

late December 2025

W

ill cover the entire area of interest, 4

km² between Cerro Campamento and

Cerros Taguas, with a grid of 400m x

400m

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First Deep

Drilling

Drill the areas showing potential

indicators of a copper-gold

porphyry system, based on

geophysical results and the

updated geological model

Planned to start early 2026

P

reliminary plan of ~4,500 metres;

subject to change based on

geophysical updates

T

his approach allows the Company to progress methodically while focusing on the most promising targets

for deep drilling.

Geophysical Survey

A

s part of this exploration phase, Ridgeback Geofísica Argentina S.A., an affiliate of Southernrock

Geophysics, has been engaged to conduct a comprehensive geophysical survey program. The program

will include Magnetotelluric (MT) and Induced Polarization (IP) surveys across the southern portion of the

Taguas property. The MT survey will provide three- dimensional models of subsurface resistivity down to

depths of approximately 1,500 metres, while the IP survey will generate chargeability models to shallower

depths reaching around 800 or 1,000 meters. Together, these techniques will provide a clearer picture of

the subsurface structure and guide the next phase of deep drilling planned for early 2026.

R

idgeback and its partner company, Southernrock Geophysics, bring extensive experience in high-

resolution geophysical surveys across the Andes, including work that has improved geological

understanding at projects such as Valeriano (Atex Resources) and Altar (Aldebaran Resources). Their

expertise in deep- penetrating MT and IP methods provides a robust technical basis for the Taguas

program and regional insight into the surrounding copper-gold systems.

C

omplementary geological work, including detailed relogging of historical drill holes and short -wave

infrared (SWIR) alteration studies, has identified vectors toward porphyry-style mineralization along a 2.5-

kilometre north–south corridor extending from Cerro IV to Cerro Campamento. This integrated approach

will allow Orvana to prioritize the most prospective zones for the upcoming deep- drilling program.

S

trategic Context

T

he Taguas exploration program aligns with Orvana's broader strategy of enhancing long- term value

through targeted exploration and disciplined capital allocation. The objective of this campaign is to refine

the geological model, test priority porphyry targets, and determine the next steps for the project’s

development. Results from the 2025/26 program will help guide Orvana’s strategic decisions regarding

future resource delineation and potential project advancement.

ABO

UT ORVANA – Orvana is a multi -mine gold-copper-silver company. Orvana’s assets consist of the

producing Orovalle operation in northern Spain; the Don Mario operation in Bolivia, currently in plant

expansion; and the Taguas Project located in Argentina. Additional information is available at Orvana’s

website (www.orvana.com).

F

or further information please contact:

N

uria Menéndez

Chief Financial Officer

E: [email protected]

C

autionary Statements – Forward-Looking Information

T

his news release contains forward- looking statements within the meaning of applicable Canadian

securities laws. Forward-looking statements are generally identified by words such as “plans”, “expects”,

“aims”, “intends”, “anticipates”, “believes”, “potential”, “target”, “may”, “could”, “would”, “should”, “will”, or

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similar expressions suggesting future outcomes or events. These statements include, but are not limited

to, statements regarding the Company’s exploration plans at Taguas, the timing, scope and objectives of

the geophysical and drilling programs, and the anticipated results or outcomes of such work.

Forward-looking statements are based on management’s reasonable assumptions as of the date of this

news release and are subject to known and unknown risks, uncertainties, and other factors that may cause

actual results, performance, or achievements to differ materially from those expressed or implied by such

statements. These factors include, but are not limited to: changes in general economic and market

conditions; fluctuations in metal prices; exploration and development risks; operational and technical

challenges; regulatory and permitting risks; environmental and social risks; political and jurisdictional risks

in Argentina and other operating areas; and those described under the heading “Risk Factors” in Orvana’s

most recent Annual Information Form and Management’s Discussion and Analysis, available under

Orvana’s profile at www.sedarplus.ca.

Readers are cautioned not to place undue reliance on forward-looking statements. The Company disclaims

any intention or obligation to update or revise any forward-looking statements, whether as a result of new

information, future events, or otherwise, except as required by law.