Intercepts extracted and reviewed by Strikepoint from the issuer’s filings. True widths may differ from downhole widths; see the full release for drill orientation.
New assay results extend gold and tungsten mineralization 350 m east of the easternmost drilling completed in 2025, with additional drilling (assays pending) continuing to intersect RIRGS gold mineralization a further 60 m to the east
Drilling to date at Rhosgobel has traced near-surface RIRGS mineralization across a strike length of approximately 1.6 km (see Figure 1). The deposit remains open along strike and to depth
Drill Hole DDRCRG-26-071 intersected 159.2 metres of 1.14 g/t gold, including 7.3 m of 8.89 g/t gold, within 256.9 metres of 0.84 g/t gold
Drill Hole DDRCRG-26-059 intersected 43.5 metres of 1.29 g/t gold within 217.9 metres of 0.52 g/t gold
Drill Hole DDRCRG-26-061 intersected 82.0 metres of 0.75 g/t gold, including 10.4 metres of 1.03 g/t gold, within 322.0 metres of 0.50 g/t gold
Drill Hole DDRCRG-26-063 intersected 13.9 metres of 0.383% WO 3 confirming significant tungsten mineralization at Rhosgobel
Seven drill rigs are currently turning on the Project at Blackjack, Saddle, Eiger, Rhosgobel, Pukelman-Contact and Bear Paw Breccia Zone
Approximately 45,000 m of diamond drilling has been completed to date this year in 101 drill holes across the Blackjack, Eiger, and Rhosgobel deposits and the Saddle, Contact, and Bear Paw Breccia Zones as part of the ongoing 60,000 m drill program planned for 2026
Vancouver, British Columbia--(Newsfile Corp. - September 8, 2026) - Sitka Gold Corp. (TSXV: SIG) (FSE: 1RF) (OTCQX: SITKF) ("Sitka" or the "Company") is pleased to announce additional assay results from diamond drill holes completed at the Rhosgobel deposit and to provide an update on the 60,000 metre diamond drilling program currently underway at its 100% owned, road accessible RC Gold Project ("RC Gold" or the "Project") in Canada's Yukon Territory. These results continue to expand the Rhosgobel deposit (see Figures 1 and 2) both at depth and along strike. The Rhosgobel deposit remains open both along strike and at depth and drilling continues to intersect significant intervals of reduced intrusion-related gold system (RIRGS) mineralization in easterly step out holes (see Figures 1 to 3). Assays are currently pending for all remaining holes that have been completed to date this year.
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"The latest results from Rhosgobel continue to underscore the robust grade and scale of this exciting gold deposit," stated Cor Coe, CEO and Director of Sitka Gold. "Hole 071 delivered another outstanding result, intersecting 256.9 metres grading 0.84 g/t gold , including 159.2 metres grading 1.14 g/t gold and 7.3 m of 8.89 g/t gold , while step-out drilling continues to successfully expand gold and tungsten mineralization well beyond the limits of the current 2.25 million ounce gold resource. Particularly exciting is the continued expansion to the east, where drill results have now extended known gold mineralization up to 350 metres beyond previous drilling, highlighted by Hole 59 which intersected 43.5 m metres of 1.29 g/t gold within 217.9 metres of 0.52 g/t gold, Hole 61 which intersected 82.0 metres of 0.75 g/t gold and 10.5 metres of 1.03 g/t gold, within 322.0 metres of 0.50 g/t gold, and Hole 67 which intersected 102.2 metres of 0.57 g/t gold, including 22.1 metres of 1.03 g/t gold . Subsequent holes with assays pending have intersected significant intervals of RIRGS mineralization including visible gold and scheelite (tungsten) a further 60 metres to the east. Rhosgobel remains open along strike and at depth, providing significant potential to continue adding ounces to what is already a substantial gold deposit that begins at surface. With seven drill rigs turning across the RC Gold Project and approximately 45,000 metres completed so far this year, the scale and potential of this gold system continues to grow, with a significant amount of drilling results still to come from the largest drill program ever conducted at RC Gold."
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Figure 1: Plan map of drilling completed at the Rhosgobel deposit, highlighting results from drill holes reported in this news release, along with the large 1.5 km x 2.0 km gold-in-soil anomaly that overlays the target area. Drilling has traced mineralization across the entire 1.6 km strike drilled to date. The deposit remains open along strike and at depth. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/6144/313313_23f6e142c4f73879_003full.jpg
Figure 2: Plan map showing drilling completed to date at the Rhosgobel deposit along with the current gold resource outline and conceptual pit outline. Drilling continues to expand mineralization both laterally and at depth, with the easternmost drilling completed this year confirming strong RIRGS mineralization at least 410 metres east of drilling completed in 2025. The deposit remains open along strike and at depth.
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Figure 3: A 3D representation of the current Rhosgobel resource shell showing the gold deposit that begins at surface and is open in all directions. A coherent core of greater than 1.0 g/t gold material is also illustrated (in purple). Drill results to date have confirmed known gold mineralization extends along a strike length of at least 1.6 km and from surface up to 650 metres depth (approximately 360 metres below the current pit constrained resource). Drill results from this release confirm gold mineralization extends up to 350 metres east of the easternmost drilling completed in 2025, with additional drilling (assays pending) continuing to intersect RIRGS gold mineralization a further 60 m to the east. The deposit remains open both laterally and at depth.
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Figure 4: Cross section of Drill hole DDRCRG-26-071 showing gold and tungsten grades
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Figure 5: Cross section of drill hole DDRCRG-26-059/061/058 showing gold and tungsten grades.
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Figure 6: Examples of visible gold observed in DDRCRG-26-055 (top row) DDRCRG-26-057 (middle row), and DDRCRG-26-071 (bottom row) from Rhosgobel.
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Figure 7: Example of drill core from DDRCRG-26-067 displaying part of the 22.1 metre interval from 287.9 m to 310.0 m that averaged 1.03 g/t gold, expanding known gold mineralization up to 350 m east of previously completed drilling.
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Figure 8: Example of scheelite (WO 3 ), a common tungsten mineral, illuminated by ultra-violet light with visible gold and bismuthinite (red circles) in a quartz vein in drill core from the Rhosgobel intrusion (observed in previously released drill hole DDRCRG-25-042). Drilling at Rhosgobel continues to intersect wide intervals of tungsten mineralization in close association with gold.
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The 2026 drill program continues to successfully intersect broad zones of Reduced Intrusion-Related Gold System (RIRGS) mineralization at the Blackjack, Eiger, and Rhosgobel deposits and continues to expand and define the known gold mineralization at each area. Drilling in the Rhosgobel deposit continues to intersect wide intervals of tungsten mineralization (scheelite) in close association with gold highlighting the continued potential of this deposit to produce tungsten as a by-product. The program will continue to define these broad zones of mineralization as well as target new zones of previously defined mineralization such as the Pukelman/Contact zones, Saddle zone and Bear Paw Breccia zone.
Drill holes DDRCRG-26-059/061 represent a large step out of approximately 100 m east along strike from the easternmost hole drilled in 2025, significantly expanding the known mineralization to the east. Drill hole DDRCRG-26-058 targeted the downdip extension of the Rhosgobel deposit on the same section and extends the known mineralization approximately 150 m deeper than the current resource in that area.
Drill hole DDRCRG-26-067, which intersected 102.2 metres of 0.57 g/t gold, including 22.1 metres of 1.03 g/t gold, represents a large step out of approximately 350 metres east of previously completed drilling, continuing to expand the known gold mineralization to the east.
Drill holes DDRCRG-26-071 (this release) and DDRCRG-26-072 (assays pending) were infill holes drilled oblique to the dominant vein orientation to test the intersection lineation between the dominant E-W vein sets and NNW trending structural corridors interpreted from 2025 ground geophysical surveys. Hole DDRCRG-26-071 intersected 256.9 metres of 0.84 g/t gold, including 159.2 metres of 1.14 g/t gold and 7.3 m of 8.89 g/t gold, confirming continuity of gold mineralization within the deposit.
* 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 9: Longitudinal section showing locations of several of the intrusion targets and the current gold resources within the Clear Creek Intrusive Complex. A 60,000 metre diamond drilling program planned for 2026 will focus on further expansion of the 2 km long Blackjack-Eiger area with 15,000 metres of drilling. An additional 30,000 metres of drilling is planned at Rhosgobel to follow up on the initial diamond drilling conducted by Sitka in 2025. 10,000 metres of drilling has been allocated for the Pukelman-Contact zone and 5,000 metres of drilling will follow up on initial drilling results from Bear Paw and test other high-priority targets.
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Figure 10* : A plan map of the Clear Creek Intrusive Complex (CCIC) 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 planned in 2026.
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* References for Figure 10 drilling intervals:
Rhosgobel Intervals: Sitka Gold News Release dated November 25, 2024
Pukelman Intervals: Sitka Gold News Release dated January 7, 2025
Sitka's 100% owned, flagship RC Gold Project consists of a 447 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 one of the largest consolidated land packages strategically positioned mid-way between the Eagle Gold Mine and the past producing Brewery Creek Gold Mine.
The RC Gold Project hosts an indicated MRE of 1,291,000 ounces of gold and an inferred MRE of 3,829,000 ounces of gold (see Table A below) hosted within three at surface, road-accessible pit constrained deposits. The 60,000 metre drill program planned for 2026 is focused on expanding all three known deposits in addition to testing other high potential targets in close proximity to the current resources.
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* Notes for Blackjack Resources:
Mineral resource estimate prepared by Ronald G. Simpson of GeoSim Services Inc. with an effective date of January 21, 2025.
Mineral Resources are estimated consistent with CIM Definition Standards and reported in accordance with NI 43-101.
Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Mineral resources are constrained by an optimized pit shell using the following assumptions: US$2000/oz Au price; a 45° pit slope; assumed metallurgical recovery of 85%; mining costs of US$2.00 per tonne; processing costs of US$10.00 per tonne; G&A of US$4.00/t.
The base case cut-off of 0.3 g/t Au is believed to provide a reasonable margin over operating and sustaining costs for open-pit mining and processing
Totals may not sum due to rounding.
** Notes for Rhosgobel and Eiger Resources:
Mineral resource estimate prepared by Ronald G. Simpson of GeoSim Services Inc. with an effective date of February 25, 2026
Mineral Resources are estimated consistent with CIM Definition Standards and reported in accordance with NI 43-101.
Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Mineral resources are constrained by an optimized pit shell using the following assumptions: US$3000/oz Au price; a 45° pit slope; assumed metallurgical recovery of 85%; mining costs of US$2.50 per tonne; processing costs of US$14.00 per tonne; G&A of US$4.00/t.
The base case cut-off of 0.3 g/t Au is based on a gold price of US$2500/oz and believed to provide a reasonable margin over operating and sustaining costs for open-pit mining and processing
Totals may not sum due to rounding.
All of these deposits begin at surface and are potentially open pit minable. Initial bottle roll metallurgical testing confirmed the non-refractory characteristics of the gold mineralization and returned gold extraction rates averaging around 85% for the Blackjack and Eiger deposits. Further metallurgical testwork in 2024 for Blackjack and Eiger returned recoveries ranging from 77.6 to 93% for gravity followed by cyanidation. Initial bottle roll testing for Rhosgobel has confirmed non-refractory characteristics of the gold mineralization with two composite samples returning gold recoveries of 89% and 96%. Additional metallurgical testing at Rhosgobel has returned an average gold recovery of 94.3% using conventional whole ore cyanidation leaching and an initial recovery of 84.7% tungsten in rougher concentrate using conventional flotation. Metallurgical testing for potential silver recovery has not yet been completed.
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.
Upcoming Events
Sitka Gold will be attending and/or presenting at the following events*:
Precious Metals Summit: Beaver Creek, Colorado : September 22 - 25, 2026
Denver Gold Show: Colorado Springs, Denver : September 27 - 30, 2026
Nordic Funds and Mines: Stockholm, Sweden : October 15 - 16, 2026
Sitka Gold Corp. is a well-funded mineral exploration company headquartered in Canada. 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, 447 square kilometre flagship RC Gold Project located within the Tombstone Gold Belt in the Yukon Territory. The Company has also announced plans to spin-out the Alpha Gold Project in Nevada and the Burro Creek Gold and Silver Project in Arizona into a new discovery-focused exploration company to be named at a later date.
A 60,000 metre diamond drilling program planned for 2026 is currently underway at the Company's flagship RC Gold Project, located in Yukon Canada, where seven diamond drill rigs are currently operating.
*For more detailed information on the Company's properties please visit our website at www.sitkagoldcorp.com
Quality Assurance/Quality Control
On receipt from the drill site, the HTW/NTW-sized drill core was systematically logged for geological attributes, photographed and sampled at Sitka's core logging facility. Sample lengths as small as 0.3 m were used to isolate features of interest, otherwise a default 2.0 m downhole sample length was used. Each sample is identified by a unique sample tag number which is placed in the bag containing the core to be assayed. Core was cut in half lengthwise along a predetermined line, with one-half (same half, consistently) collected for analysis and one-half stored as a record. Standard reference materials, blanks and duplicate samples were inserted by Sitka personnel at regular intervals into the sample stream. Bagged samples were placed in secure bins to ensure integrity during transport. They were delivered by Sitka personnel or a contract expeditor to ALS Laboratories' preparatory facility in Whitehorse, Yukon, with analyses completed in North Vancouver.
ALS is accredited to ISO 17025:2005 UKAS ref. 4028 for its laboratory analysis. Samples were crushed by ALS to over 70 per cent passing below two millimetres and split using a riffle splitter. One-thousand-gram splits were pulverized to over 85 per cent passing below 75 microns. Gold determinations are by fire assay with an inductively coupled plasma atomic emission spectroscopy (ICP-AES) finish on 50 g subsamples of the prepared pulp (ALS code: Au-ICP-22). Any sample returning over 10 g/t gold was re-analyzed by fire assay with a gravimetric finish on a 50 g subsample (ALS code: Au-GRA21). In addition, a 51-element analysis was performed on a 0.5 g subsample of the prepared pulps by an aqua regia digestion followed by an inductively coupled plasma mass spectroscopy (ICP-MS) finish (ALS code: ME-MS41). All drill core at the Rhosgobel deposit was selected for additional XRF analysis on a lithium borate fusion (ALS code: XRF-15b) for WO 3 .
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 (QP) as defined by National Instrument 43-101.
Mr. Dessureau has verified the data disclosed in this news release, including the sampling, analytical and test data underlying the disclosure, through multiple visits to drill sites and regular review of the QA/QC procedures applied to analytical results received from ALS Laboratories. No limitations or failures to verify were identified that could materially affect the results.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary and Forward-Looking Statements
This release includes certain statements and information that may constitute forward-looking information within the meaning of applicable Canadian securities laws. Forward-looking statements relate to future events or future performance and reflect the expectations or beliefs of management of the Company regarding future events. Generally, forward-looking statements and information can be identified by the use of forward-looking terminology such as "intends" or "anticipates", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "should", "would" or "occur". This information and these statements, referred to herein as "forward‐looking statements", are not historical facts, are made as of the date of this news release and include without limitation, statements regarding discussions of future plans, estimates and forecasts and statements as to management's expectations and intentions and the Company's anticipated work programs.
Such forward-looking information and statements are based on numerous assumptions, including among others, that the Company will carry out its exploration plans as currently anticipated by management. Although the assumptions made by the Company in providing forward-looking information or making forward-looking statements are considered reasonable by management at the time, there can be no assurance that such assumptions will prove to be accurate.
These forward‐looking statements involve numerous risks and uncertainties and actual results might differ materially from results suggested in any forward-looking statements. These risks and uncertainties include, among other things, market uncertainty, risks related to exploration and the results of the Company's anticipated work programs.
Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statement, forward-looking information or financial outlook that are incorporated by reference herein, except in accordance with applicable securities laws. We seek safe harbor.
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