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Spanish Mountain Gold Concludes Diamond Drill Program with 300 m Step- out Hole Intersecting 0.49 g/t over 100.49 meters in the K-Zone

Drill Results

Spanish Mountain Gold Concludes Diamond Drill Program with 300 m Step-

out Hole Intersecting 0.49 g/t over 100.49 meters in the K-Zone

VANCOUVER, British Columbia--(BUSINESS WIRE)--June 17, 2025--Spanish Mountain

Gold Ltd. (the "Company" or "Spanish Mountain Gold") (TSX-V: SPA) (FSE: S3Y) (OTCQB:

SPAUF) is pleased to report final drill results from the recently completed 10,000 m winter

drilling program. The results include a strategic step-out hole located approximately 300 m to the

northwest of the K-Zone high-grade intercept from hole 25-DH-1286 (refer to press release dated

April 24, 2025).

Highlights:

•Hole 25-DH-1290 intercepted broad mineralization over 100.49 m grading 0.49 g/t Au, from

300 m, including 15.00 m grading 1.29 g/t Au, and 1.00 m grading 12.13 g/t Au, which displayed

visible gold. Hole 25-DH-1290 is approximately 300.00 m northwest of hole 25-DH-1286.

• Hole 25-DH-1290 also discovered a new cataclastic argillite unit at 240.00 m vertical depth,

displaying consistent grades that potentially extend the depth of mineralization in a

southwesterly direction, outside the 2021 Prefeasibility Study (“PFS”), open-pit constrained,

mineral resource estimate (refer to press release dated May 11, 2021).

• Holes 25-DH-1288 and 25-DH-1291 were collared 35.00 m northeast of hole 25-DH-1286 and

encountered multiple quartz veins with encouraging gold values. 25-DH-1288 intercepted 46.00

m grading 0.22 g/t Au from 162.00 m, including 8.00 m grading 0.39 g/t Au and 2.00 m grading

1.06 g/t Au. 25-DH-1291 had 5.33 m grading 0.34 g/t Au.

Julian Manco, Spanish Mountain Gold's Director of Exploration, commented, “Overall, we are

very pleased with this year’s diamond drill campaign, having revealed several significant

extensions to gold mineralization at the Phoenix, Outcropping Tuff, and K-Zone targets. These

results have grown the mineral endowment potential strike length to 3 km. It is a very exciting

time for the project’s growth prospects.”

The evolving geological and structural interpretation of the Spanish Mountain Gold project area

continues to unlock new mineral potential in adjacent structural domains southwest of the 2021

PFS, open pit constrained, mineral resource estimate (refer to press release dated May 11, 2021).

Recent drilling results support the hypothesis for a new prospective target area within the mafic

tuff unit (Figure 2). Intense hydrothermal alteration was observed within the mafic tuff unit near

this fault suggesting possible intrusive characteristics along the south fault that may have also

served to transport mineralizing fluids. The gold in soil anomalies observed near the confluence

of the major fault structures such as the North Fault, South Fault, Fault 1 and Fault 2 (see Figure

1), continues to demonstrate that these structural intersections represent compelling exploration

targets that can be used to explore on a broader project scale.

Table 1: 2025 Winter Drill Program – Summarized Gold Assay Results

Drillhole ID From To Width(m) Gold Grade

(g/t Au)

25-DH-1288 19.00 23.00 4.00 0.23

25-DH-1288 51.00 71.00 20.00 0.24

including 67.92 69.00 1.08 1.25

25-DH-1288 162.00 208.00 46.00 0.22

including 162.00 170.00 8.00 0.39

including 206.00 208.00 2.00 1.06

25-DH-1289 308.00 312.00 4.00 0.33

25-DH-1290 300.00 399.00 100.49 0.49

including 338.00 346.00 8.00 1.84

including 341.00 342.00 1.00 12.13

including 384.00 399.00 15.00 1.29

including 386.00 397.00 11.00 1.62

including 393.00 397.00 4.00 2.56

25-DH-1291 171.67 177.00 5.33 0.34

Notes:

1. Reported intersections are calculated using a 0.15 g/t Au cut-off grade.

2. The complete assay table is available on the Company’s website

3. True thickness of mineralization is unknown

Table 2: Drill Hole Collar Summary

HOLE-ID

LOCATION

‘X’

LOCATION

‘Y’

LOCATION

‘Z’ LENGTH Azimuth Dip Core

Size Easting Northing Elevation

25-DH-1288 603968 5827726 1188 330 150 70 HQ

25-DH-1289 603934 5827737 1183 347 250 55 HQ

25-DH-1290 603739 5827859 1145 402 150 60 HQ

25-DH-1291 603968 5827726 1188 314 139 62 HQ

Abbreviations: metres = m, grams per tonne = g/t, gold = Au, visible gold = VG, quality control-

quality assurance = QAQC, Prefeasibility Study = PFS, Professional Geologist = P.Geo.

Drill Core Processing, Data Verification and Quality Assurance – Quality Control Program

(QAQC)

Once received from the drill and processed, all drill core samples were sawn in half, labeled, and

bagged. The remaining half of the drill core was securely stored on-site. Numbered security tags

were applied to sample shipments to ensure chain of custody compliance. The Company inserts

quality control (QC) samples at regular intervals, including blanks and reference materials, for

all sample shipments to monitor laboratory performance. Standards and blanks account for a

minimum of 15% of the samples in addition to the laboratory’s internal quality assurance

programs. The QAQC program was overseen by the Company’s Qualified Person, Julian Manco,

P.Geo, Director of Exploration (as described below).

Drill core samples were submitted to MSALABS’ analytical facility in Prince George, British

Columbia, for sample preparation and PhotonAssayTM analysis. The MSALABS facilities are

accredited to the International Standards ISO/IEC 17025 and ISO 9001 standard for gold and

multi-element assays, with all analytical methods incorporating quality control materials at

defined frequencies and established data acceptance criteria. MSALABS Inc. is independent of

the Company.

PhotonAssayTM

The PhotonAssayTM method utilizes gamma ray analysis for gold detection using the Chrysos

PhotonAssayTM instrument (PA1408X). This non-destructive, fully automated technique offers

high accuracy for analyzing ores and pulps. Sample preparation begins with drying and crushing

up to 1 kg of material to achieve at least 70% passing through a 2-millimetre (mm) sieve. The

sample is then riffle split to obtain a suitable aliquot for 2 testing cycles (MSALABS Method

CPA-Au1).

The PhotonAssayTM instrument bombards 400 - 600 gram samples contained in sealed containers

with gamma rays. These containers remain sealed throughout the process, preserving the sample

for potential further testing. The analysis is performed robotically, with results that integrate into

existing laboratory management systems.

Each sample is accompanied by a reference disc traceable to a Certified Reference Material

(CRM). Both the sample and reference disc undergo gamma ray exposure, with signals detected

and analyzed to ensure accurate and reliable results.

The method offers a gold detection range from 0.015 parts per million (ppm - lower limit) to

10,000 ppm (upper limit). Quality control includes the use of reference materials and blanks,

with all results reviewed by a competent person before reporting.

Spanish Mountain Gold implemented two QAQC methodologies to validate the accuracy of

PhotonAssayTM results, both demonstrating good comparability: 1) comparative analysis of

diverse mineralization styles using Total Au screen metallic methods with both FAS-415

(gravimetric finish) and FAS-211 (AAS finish), and 2) comprehensive testing of both sample

aliquots and rejects using FAS-211 (AAS finish).

QAQC Testing typically can include the following spot checks: 1) Pulverizing tests to evaluate

variability in sample preparation, 2) Cross-analysis at external laboratories using screen metallic

method, and 3) Four-cycle radiation testing to identify and calibrate potential variability in gold

results with variable radiation intensity.

To effectively manage the nugget effect gold samples MSALABS tested samples to "extinction"

(CPA-Au1E method). This approach divides samples into multiple splits, analyzes each

separately using PhotonAssayTM, and then calculates a weighted average of the results. By

testing various portions of the sample independently and combining their values proportionally,

this method provides significantly more representative gold values than traditional single-split

analysis for samples with a large nugget effect.

Multi-Elemental Analysis

For the 2025 drilling campaign Spanish Mountain Gold used IMS-230 method to provide multi-

element determination using a four-acid digestion followed by ICP-OES and ICP-MS analysis.

Key Process Steps:

Sample Preparation: Samples are dried and ground to specific criteria (85% passing 75 microns

(μm) for rocks and drill core; 180μm for soils and sediments). A homogeneous 10-gram sample

is required.

Digestion: Samples undergo sequential digestion with nitric, perchloric, hydrofluoric, and

hydrochloric acids, followed by dilution with deionized water.

Analysis: The solution is analyzed via ICP-OES and ICP-MS for multi-element quantification.

Quality Control: The process includes reference materials, blanks, and duplicates, with

corrections for spectral interferences and thorough review before final reporting.

Julian Manco, M.Sc., P.Geo., has verified the data disclosed in this news release. The data

verification process involved a multi-step approach to ensure accuracy and integrity. This

included a detailed quality control (QC) analysis of the data, which was performed using both

internal and external platforms, such as the MxDeposit™ software. These QC checks involved

the analysis of certified reference materials (CRMs), blanks, and duplicates to confirm the

reliability of the assay results. In addition, Mr. Manco, conducted a field inspection of the

specific drill intervals mentioned in this release to directly observe the geological features and

verified the nature of the results presented.

Qualified Person

Julian Manco, M.Sc., P.Geo., Director of Exploration with Spanish Mountain Gold, is the

Qualified Person as defined under National Instrument 43-101 who has reviewed and has

approved the contents of this news release.

About Spanish Mountain Gold Ltd.

Spanish Mountain Gold Ltd. is focused on advancing its 100%-owned Spanish Mountain Gold

Project (Project) towards construction of the next gold mine in the Cariboo Gold Corridor,

British Columbia. The Company expects to release at the end of Q2, 2025, the results for the

Project’s newly de-risked and optimized Preliminary Economic Assessment (PEA) with an

updated Mineral Resource Estimate (MRE). Upon receipt of the new PEA and updated MRE, the

company will decide the next steps to advance the Project to position the company to make a

construction decision in or before 2027. We are striving to be a leader in community and

Indigenous relations by leveraging technology and innovation to build the 'greenest' gold mine in

Canada. The Relentless Pursuit for Better Gold means seeking new ways to achieve optimal

financial outcomes that are safer, minimize environmental impact and create meaningful

sustainability for communities. Details of the Company are available on www.sedarplus.ca and

on the Company's website: www.spanishmountaingold.com.

On Behalf of the Board,

“Peter Mah”

President, Chief Executive Officer and Director

Spanish Mountain Gold Ltd.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is

defined in the policies of the TSX Venture Exchange) accepts responsibility for the

adequacy or accuracy of this release.

FORWARD-LOOKING INFORMATION:

Certain of the statements and information in this press release constitute "forward-looking

information". Any statements or information that express or involve discussions with respect to

predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or

performance (often, but not always, using words or phrases such as "expects", "anticipates",

"believes", "plans", "estimates", "intends", "targets", "goals", "forecasts", "objectives",

"potential" or variations thereof or stating that certain actions, events or results "may", "could",

"would", "might" or "will" be taken, occur or be achieved, or the negative of any of these terms

and similar expressions) are not statements of historical fact and may be considered forward-

looking information. The Company's forward-looking information is based on the assumptions,

beliefs, expectations and opinions of management as of the date of this press release and include

but are not limited to information with respect to, the potential to extend mineralization within

the near-surface environment; the potential to expand resources and to find higher-grade

mineralization at depth; the timing, size and budget of a winter drill program, and the results

thereof; and the delivery of a maiden resource for the Phoenix Target, and the timing and results

thereof. Other than as required by applicable securities laws, the Company does not assume any

obligation to update forward-looking information if circumstances or management's

assumptions, beliefs, expectations or opinions should change, or changes in any other events

affecting such statements or information. For the reasons set forth above, investors should not

place undue reliance on forward-looking information.

Contacts

For more information, contact:

Peter Mah

(604) 601-3651

[email protected]