Vancouver - Spanish Mountain Gold Ltd. (the 'Company' or 'Spanish Mountain Gold') (TSX-V: SPA) (FSE: S3Y) (OTCQB: SPAUF) is pleased to provide additional assay results from five (5) exploration drill holes within the Orca Fault target trend that were completed as part of its 2025 Fall Diamond Drill program ('2025 Fall Drill Program') for the Spanish Mountain Gold ('SMG') project, which is located in the Cariboo Gold Corridor, British Columbia, Canada.
The company has completed approximately 8,220 m of drilling to date of the 9,000 to 10,000 metres ('m') of exploration drilling planned under the 2025 Fall Drill Program. Assays and geochemistry are pending receipt from the laboratory and or reporting from seven (7) additional drill holes completed on the newly defined Orca Fault area.
Highlights: 25-DH-1314 intersected three separate intervals over the drill hole including:
10.11 m of 0.49 g/t gold from 56.23 m with a subinterval of 2.00 m of 1.57 g/t gold;
15.56 m of 0.47 g/t gold from 150.00 m including 11.20 m of 0.52 g/t gold and a high-grade subset of 4.50 m of 0.77 g/t gold and 13.41 m of 0.43 g/t gold including 5.91 m of 0.75 g/t gold.
25-DH-1315 intersected from 20.00 m, 171.36 m of 0.64 g/t gold including 102.36 m of 0.92 g/t gold with a high-grade subset of 17.00 m of 2.12 g/t gold;
25-DH-1316 intersected from 14.79 m, 75.71 m of 0.73 g/t gold including 42.63 m of 1.10 g/t gold; 25-DH-1317 intersected from 121.65 m, 36.55 m of 0.71 g/t gold including 18.98 m of 1.01 g/t gold and 25-DH-1318 intersected from 48.38 m, 61.12 m of 0.50 g/t gold including 28.62 m of 0.78 g/t gold with a high-grade subset of 14.00 m of 1.08 g/t gold
Key Findings:
Current exploration drilling assay results continues to intersect significant higher-grade mineralization over 530 m in strike length in the Orca Fault target and the continuity can now be traced across multiple parallel, adjacent drill sections.
All results to date continue to reinforce that tighter exploration drill spacing is unlocking additional mineral potential in the Main deposit. These exploration drill holes are presented on a drill section that shows the alignment of the higher-grade mineralization to the new Orca Fault target.
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 20% 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).
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, a field inspection of the specific drill intervals mentioned in this release has been conducted to directly observe the geological features and verified the nature of the results presented.
Drill core samples were submitted to MSALABS's 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- to 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.
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 a specific criterion (85% passing 75 microns (-microm) for rocks and drill core; 180-microm 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.
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. On August 18, 2025, the Company filed an NI 43-101 Technical Report on SEDAR+ that sets out the Project's de-risked and optimized Preliminary Economic Assessment (PEA), with an updated Mineral Resource Estimate (MRE). We will continue to advance the Project to position the Company to make a construction decision in 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 on the Company are available on www.sedarplus.ca and on the Company's website: www.spanishmountaingold.com.
Contact:
Peter Mah
Tel: (604) 601-3651
Email: info@spanishmountaingold.com
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 for adding more higher-grade gold mineralization within the pit or below current pit design and the timing and size (m) of the 2025 Fall Drill Program, and the 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.
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