Sitka Gold Corp. (TSX-V: SIG) (FSE: 1RF) (OTCQB: SITKF) is pleased to announce additional analytical results from drilling completed at its 100% owned, road accessible RC Gold Project located within the Yukon’s prolific Tombstone Gold Belt. Drilling at the Eiger gold deposit has expanded the mineralized envelope beyond the current MRE boundary, with drill hole DDRCCC-25-109 intersecting 121.0 m of 0.75 g/t gold and 26.0 m of 1.28 g/t gold within 249.9 m of 0.58 g/t gold from 325.0 m outside of the current MRE. Analytical results are currently pending for 38 drill holes at RC Gold, including 26 from the new Rhosgobel discovery and the remainder from Pukelman, Contact, Bearpaw, and May-Qu.

Highlights:

• Step out drilling at Eiger continues to return broad intervals of significant gold mineralization beyond the current Mineral Resource Estimate boundary at the Eiger deposit, which remains open in all directions
• Drill hole DDRCCC-25-109 intersected 121.0 m of 0.75 g/t Au and 26.0 m of 1.28 g/t Au within 249.9 m of 0.58 g/t Au,further expanding the Eiger Deposit
• Recent results suggest a higher-grade component to the Eiger deposit is emerging at depth which is a characteristic of the more advanced Blackjack deposit located approximately 1.5 km to the west
• Drilling continues to define a robust gold system within the Blackjack – Saddle – Eiger extensional corridor where recently released assay results returned 44.4 m of 1.33 g/t Au at the Saddle target, approximately 1,000 m to the west of Eiger
• Additional results pending for 38 drill holes, including 26 holes from the new Rhosgobel discovery and the remainder from Pukelman, Contact, Bearpaw, and May-Qu.

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“Drilling continues to outline a large, robust gold system at Eiger, which remains open in all directions, while expanding the mineralized footprint beyond the current deposit model,” stated Cor Coe, CEO and Director of Sitka Gold. “This year marked the first follow up drilling completed at Eiger since the initial MRE, based on just 13 drill holes, was published in 2021. Strong gold intercepts such as the 121.0 metres of 0.75 g/t gold and 26.0 metres of 1.28 g/t gold within 249.9 metres of 0.58 g/t gold in hole 109, which included, which was intercepted 325 metres beyond the current MRE boundary, underscore the potential to add significant ounces to the Eiger deposit where a higher-grade component appears to be developing. As additional drilling is completed, our understanding of the controls of mineralization at Eiger continue to evolve in a similar way as it did at the neighbouring Blackjack deposit where much more drilling has delineated a substantial, higher-grade resource. There is still plenty of untapped potential at Eiger and we anticipate ramping up drilling efforts there as part of next year’s expanded exploration program with up to 60,000 metres of drilling planned.”

“Eiger is just one of multiple intrusion-related gold deposit targets within the broader Clear Creek Intrusive Complex where the robust scale and continuity of gold mineralization across this district-scale land package is becoming increasingly evident. As assays continue to be received, we look forward to releasing additional pending results from the many other target areas that were drilled at RC Gold this year, including Pukelman, Contact, Rhosgobel, Bearpaw and May-Qu.”

Figure 1: A plan map of the Eiger deposit showing the location of 2025 drilling. Step out drilling completed in 2025 has significantly expanded known gold mineralization beyond the current MRE boundary.

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Figure 2: A cross section of the Eiger Deposit showing the location of DDRCCC-25-109 which returned 121.0 metres of 0.75 g/t gold and 26.0 metres of 1.28 g/t gold within 249.9 metres of 0.58 g/t gold, intercepted 325 metres beyond the current MRE boundary. These results underscore the potential to add significant ounces to the Eiger deposit and suggest a higher-grade component appears to be developing at depth.

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Figure 3: A 3D cross section of the Eiger Deposit showing the location of new drilling with respect to the current mineral resource estimation block model. The Eiger deposit remains open in all directions and results from this news release have significantly expanded mineralization beyond the current MRE boundary. Results such as the 121.0 m of 0.75 g/t Au from 248.0 m and 26.0 m of 1.28 g/t Au from 325.0 m intercepted in DDRCCC-25-109 also suggest a higher-grade component to the deposit could be emerging at depth, which is a characteristic of the more advanced Blackjack deposit located 1.5 km to the west.

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Figure 4: Plan map of the Blackjack-Saddle-Eiger extensional corridor (dashed line) where large gold-in-soil anomalies have been found to strongly correlate with in-situ gold mineralization.

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Figure 5: Examples of visible gold observed in drill core at the Eiger Deposit. Click the following link to see additional images of VG from the EIGER zone.

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Figure 6: Core from DDRCCC-25-109 of sheeted quartz veins in diorite showing part of the 26.0 m interval of 1.28 g/t Au, including 2.0 m of 7.09 g/t Au from 337.0 m.

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Eiger Deposit
Drilling at the Eiger in 2025, which included 10 holes for 4,401 meters, was successful in extending the known mineralization at the Eiger deposit. Drilling intersected reduced intrusion-related gold style mineralization including centimetre scale quartz veins with visible gold often associated with bismuthinite, arsenopyrite, and occasionally scheelite and extended mineralization to the east, west, and down dip. The current mineral resource estimation at Eiger is 440,000 ounces of gold in 27,362,000 tonnes grading 0.50 g/t gold in an inferred category. Recently completed drilling at Eiger, including the 121.0 m of 0.75 g/t Au from 248.0 m and 26.0 m of 1.28 g/t Au from 325.0 m intercepted in DDRCCC-25-109, suggest a higher-grade component to the deposit could be emerging at depth, which is a characteristic of the more advanced Blackjack deposit located 1.5 km to the west. The Eiger deposit remains open in all directions.

Previous mapping by US Geological Survey and the Yukon Geological Survey (Marsh et al, 1998, Marsh et al, 1999) has demonstrated that the gold mineralization identified at the Blackjack Deposit, the Saddle Zone and the Blackjack deposit occurs within a 1 km by > 4 km extensional corridor (Figure 4). Such corridors can create structural conditions favourable for the emplacement of intrusive rocks and associated gold mineralization.
* While visible gold observations are very encouraging and confirm the presence of gold mineralization, they are not intended to imply potential gold grades. Gold assays will be published after they are received from the lab for mineralized intervals in which visible gold particles were noted.

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Figure 7: A plan map of the Clear Creek Intrusive Complex showing the updated resource areas at Blackjack and Eiger, along with the newly discovered Rhosgoble zone and several other high-priority drill targets and multiple exploration targets. . The map highlights the numerous drill targets that Sitka has outlined within the CCIC which all are connected by the road network on the project and occur in an area measuring five (5) km north-south and twelve (12) km east-west. Additional areas highlighted by strong gold in soil anomalies are being advanced to the drill ready stage with additional geological work in 2025.

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Figure 8*: A plan map of the Clear Creek Intrusive Complex showing the updated resource areas at Blackjack and Eiger, and the six additional areas that have drill targets indicated by the mauve hatched areas. The map highlights the numerous drill targets that Sitka has outlined within the CCIC which all are connected by the road network on the project and occur in an area measuring five (5) km north-south and twelve (12) km east-west. Additional areas highlighted by strong gold in soil anomalies are being advanced to the drill ready stage with additional geological work in 2025.

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* References for Figure 7 drilling intervals:
Rhosgobel Intervals: Sitka Gold News Release dated November 25, 2024
Pukelman Intervals: Sitka Gold News Release dated January 7, 2025
Contact Intervals: O’Brien, 2010; Assessment Report, 2010 Diamond Drilling Program, Clear Creek Property (Assessment report 095539)
Shutty, 2011; Assessment Report, 2011 Exploration Program, Clear Creek Property (Assessment Report 095984)
Bear Paw Intervals: Shutty, 2011; Assessment Report, 2011 Exploration Program, Clear Creek Property (Assessment Report 095984)

Figure 9: Regional map of the RC Gold Project located in the western portion of Yukon’s prolific Tombstone Gold Belt.

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About Sitka’s Flagship RC Gold Project
Sitka’s 100% owned RC Gold Project consists of a 431 square kilometre contiguous district-scale land package located in the heart of Yukon’s Tombstone Gold Belt. The project is located approximately 100 kilometres east of Dawson City, which has a 5,000 foot paved runway, and is accessed via a secondary gravel road from the Klondike Highway which is usable year-round and is an approximate 2 hour drive from Dawson City. It is the largest consolidated land package strategically positioned mid-way between the Eagle Gold Mine and the past producing Brewery Creek Gold Mine.

The RC Gold Project now has pit-constrained mineral resources that are contained in two zones: the Blackjack and Eiger gold deposits with 1,291,000 ounces of gold in 39,962,000 tonnes grading 1.01 g/t gold in an indicated category and 1,044,000 ounces of gold in 34,603,000 tonnes grading 0.94 g/t in an inferred category at Blackjack and 440,000 ounces of gold in 27,362,000 tonnes grading 0.50 g/t gold in an inferred category at Eiger. These resource estimate numbers are supported by the recently updated technical report for RC Gold, prepared in accordance with NI 43-101 standards, entitled “Clear Creek Property, RC Gold Project NI 43-101 Technical Report Dawson Mining District, Yukon Territory”, prepared by Ronald G. Simpson, P. Geo., of GeoSim Services Inc. with an effective date of January 21, 2025. This report is available on SEDAR+ (http://www.sedarplus.ca) and on the Company’s website (www.sitkagoldcorp.com).

Both of these deposits begin at surface, are potentially open pit minable and Initial bottle roll metallurgical testing confirmed the non-refractory characteristics of the gold mineralization and returned gold extraction rates averaging around 85%. Further metallurgical testwork in 2024 returned recoveries ranging from 77.6 to 93% for gravity followed by cyanidation.

For the purposes of the current resource model, it is assumed that a likely mill flowsheet would consist of a gravimetric, flotation, and cyanidation circuit.

The company has now completed 165 diamond drill holes for a total of 59,770 metres across the Clear Creek Intrusive Complex, and an additional 3 holes for 858 metres in the May-Qu Intrusion. Drilling continues to outline higher grade mineralization at all zones including hole DDRCCC-24-068 at Blackjack which intersected 678.1 metres of 1.04 g/t gold starting from surface (see news release dated October 21, 2024), and hole DDRCCC-25-075 which intersected 352.8 metres of 1.55 g/t gold including 108.9 metres of 3.27 g/t gold and 45.0 metres of 4.52 g/t gold (see news release dated April 22, 2025). Drilling in 2024/2025 has resulted in the discovery of a new higher grade zone at Rhosggobel including hole DDRCRG-25-010 at Rhosgobel which intersected 235.9 metres of 1.11 g/t gold, including 40.0 m of 2.01 g/t gold and 10.0 m of 5.29 g/t gold, from surface (see news release dated September 18, 2025).

RC Gold Deposit Model
Exploration on the Property has mainly focused on identifying an intrusion-related gold system. The property is within the Tombstone Gold Belt which is the prominent host to IRGS deposits within the Tintina Gold Province in Yukon and Alaska. Notable deposits from the belt include: Fort Knox Mine in Alaska with current Proven and Probable Reserves of 230 million tonnes at 0.3 g/t Au (2.471 million ounces; Sims 2018)⁽¹⁾; Eagle Gold Mine with current Measured and Indicated Resources of 233 million tonnes at a grade of 0.57 g/t Au at the Eagle Main Zone (4.303 million ounces; Harvey et al, 2022)⁽²⁾; the Brewery Creek deposit with current Indicated Mineral Resource of 22.2 million tonnes at a gold grade of 1.11 g/t (0.789 million ounces; Hulse et al. 2020)⁽³⁾; the AurMac Project with an Indicated Mineral Resource of 112.5 million tonnes grading 0.63 gram per tonne gold (2.274 million ounces)⁽⁴⁾ plus an Inferred resource of 280.6 million tonnes grading 0.60 g/t gold (5.454 million ounces)⁽⁴⁾, the Valley Deposit, with a current Measured and Indicated Mineral Resource of 7.94 million oz gold at 1.21 g/t and an additional Inferred Mineral Resource of 0.89 million oz at 0.62 g/t gold⁽⁵⁾, and the Raven deposit with an inferred mineral resource of 1.1 million oz (19.96 million tonnes at 1.67 g/t gold)⁽⁶⁾. The QP has been unable to verify the information regarding the above resource estimations and the information is not necessarily indicative of the mineralization on the property that is the subject of the disclosure.

(1) Sims J. Fort Knox Mine Fairbanks North Star Borough, Alaska, USA National Instrument 43-101 Technical Report. June 11, 2018. https://s2.q4cdn.com/496390694/files/doc_downloads/2018/Fort-Knox-June-2018-Technical-Report.pdf

(2) Harvey N., Gray P., Winterton J., Jutras M., Levy M.,Technical Report for the Eagle Gold Mine, Yukon Territory, Canada. Victoria Gold Corp. December 31, 2022. https://vgcx.com/site/assets/files/6534/vgcx_-_2023_eagle_mine_technical_report_final.pdf

(3) Hulse D, Emanuel C, Cook C. NI 43-101 Technical Report on Mineral Resources. Gustavson Associates. May 31, 2020. https://minedocs.com/22/Brewery-Creek-PEA-01182022.pdf

(4) July 8, 2025,Banyan Gold Corp., News Release. https://banyangold.com/news-releases/2025/banyan-announces-first-indicated-mineral-resources-and-identifies-high-grade-continuous-zones-at-its-aurmac-project-yukon-canada/

(5)https://snowlinegold.com/2025/05/15/snowline-gold-expands-measured-and-indicated-gold-ounces-by-96-in-updated-mineral-resource-estimate-at-its-valley-gold-deposit-yukon/

(6) Jutras, M. 2022. Technical Report on the Raven Mineral Deposit, Mayo Mining District Yukon Territory, Canada, prepared for Victoria Gold Corp and filed on SEDAR (www.sedar.com) with an effective date of September 15, 2022

About Sitka Gold Corp.
Sitka Gold Corp. is a well-funded mineral exploration company headquartered in Canada with over $43 million in its treasury and no debt. The Company is managed by a team of experienced industry professionals and is focused on exploring for economically viable mineral deposits with its primary emphasis on gold, silver and copper mineral properties of merit. Sitka is currently advancing its 100% owned, 431 square kilometre flagship RC Gold Project located within the Tombstone Gold Belt in the Yukon Territory. The Company is also advancing the Alpha Gold Project in Nevada and currently has drill permits for its Burro Creek Gold and Silver Project in Arizona and the Coppermine River Project in Nunavut, all of which are 100% owned by Sitka.

*For more detailed information on the Company’s properties please visit our website at www.sitkagoldcorp.com.

Upcoming Events

Sitka Gold will be attending and/or presenting at the following events*:

• Scotiabank Mining Conference: Toronto, Ontario: December 2-3, 2025
• Metals Investor Forum (MIF): Vancouver, BC: January 23 – 24, 2026
• Vancouver Resource Investment Conference (VRIC): Vancouver, BC: January 25 – 26, 2026
• AME Roundup: Vancouver, BC: January 26 – 29, 2026

*All events are subject to change.

The scientific and technical content of this news release has been reviewed and approved by Gilles Dessureau, P.Geo., V.P. Exploration of the Company, and a Qualified Person as defined by National Instrument 43-101.

ON BEHALF OF THE BOARD OF DIRECTORS OF

SITKA GOLD CORP.

“Donald Penner“

President and Director