Gold Runner Exploration expands Golden Girl property in Golden Triangle following airborne magnetic survey

Vancouver, British Columbia--(Newsfile Corp. - September 10, 2026) - Gold Runner Exploration Inc. (CSE: GRUN) (FSE: CE70) (" Gold Runner " or the " Company ") is pleased to announce that it has completed processing and interpretation of the airborne magnetic and radiometric surveys conducted on the Golden Girl property (the "Property") in the Golden Triangle of British Columbia. Due to the positive survey results, as well as exploration efforts on the ground, the Company has actively chosen to stake additional claims in the area and has more than doubled the size of the Golden Girl Property from 5,873 hectares ("ha") to 14,480 ha.

The newly staked claims cover additional large areas of recent glacial retreat and permanent snowpack abatement between the original claim boundaries centered around the newly discovered Gold Stack Trend and the past producing Snip Mine. Multiple new exploration targets within the expanded claims have been identified with the help of magnetic and radiometric anomalies determined with the recently concluded geophysical survey. Initial prospecting, mapping and systematic sampling has been carried out on a number of these new showings with the goal of adding potential drill targets for the upcoming inaugural drill program scheduled for the summer of 2027. The new claims have been duly filed, registered, and submitted for approval.

The Company's successful 2026 exploration program focused on prospecting, systematic sampling and mapping of new and historic showings in preparation for drilling. During the program a total of 473 samples were collected (290 grab samples, 122 channel samples, and 61 silt samples). Assays are pending on 413 samples collected. In addition to the airborne magnetic and radiometric surveys, the company also completed a unmanned aerial vehicle (UAV) photogrammetry and LiDAR survey on the Golden Girl Property which among other things will help identify the extent of mineralization and facilitate 3D modeling as exploration progresses through successive future drilling campaigns.

Gold Runner's Chief Executive Officer, Chris Wensley, states, "In the face of such encouraging data from both our geophysics efforts and what we're seeing on the ground, it became immediately apparent that acquiring the adjoining claims at Golden Girl was imperative. The additional claims, once approved, will more than double the Company's footprint in this highly prospective ground extending from Snip to the Alaska/B.C. border. We are very keen and excited to learn more about what these additional claims, and the entire Golden Girl Property, hold. This lays a strong foundation for years of exploration and development to come."

Figure 1. Golden Girl Claim Map with Airborne Magnetic and expansion claims

To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/7042/313772_5b08cbffd4157859_002full.jpg

Golden Girl Property Highlights:

The Golden Girl Property covers 14,480 ha in the prolific Iskut River region of Northwestern British Columbia, located just 17 km from the Snip Mine and 14 km from the Bronson Airstrip.

Discovery exploration in 2024 identified a major new gold-silver system measuring 12 km by 7 km with high grade gold-silver mineralization: Grab samples assayed up to 11.28 g/t Au, 3,262 g/t Ag, 5.37% Cu, 20% Pb, and 14% Zn.

Channel cuts assayed up to 3.74 g/t Au, 2,105.45 g/t Ag, 0.88% Cu, 5.48% Pb, and 7.42% Zn.

Multiple new gold-silver mineralized zones have been identified during the 2026 exploration season, including the Gold Stack Trend which has a strike of 350 metres ("m") and contains samples with grades up to 396.66 g/t AuEq (11.22 g/t Au, 25,306 g/t Ag, 2.96% Cu, 8.19% Pb, and 5.89% Zn) and remains open (see the Company's news release dated August 31, 2026).

High-grade mineralization occurs in structurally controlled shear zones with sulphide-rich veins, stockwork, and breccias, similar to the nearby past-producing Snip Gold Mine (which historically produced ~1M oz Au, 390k oz Ag, and over 249k kg Cu). The reader is reminded that the information provided herein from neighbouring projects and properties is not necessarily indicative of resources and should not be relied upon for the determination of mineralization or potential results of the Company's properties.

More than 95% of the Property has never undergone systematic modern exploration. Recent rapid glacial retreat and melting snowpacks have exposed vast areas of previously buried bedrock, opening large, untouched tracts of ground for immediate mapping and sampling.

Goliath Resources (TSXV: GOT) and Juggernaut Exploration (TSXV: JUGR) are partners within the B-ALL Syndicate ("B-ALL"), the optionor of Golden Girl Property, holding respectively, 4% and 13% interest in B-ALL, and as such are important strategic partners of Gold Runner.

Qualified Person This News Release has been approved by Alan Morris, M.Sc., CPG #10550. Alan J. Morris is an independent, Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects (NI 43-101) and has reviewed the scientific and technical disclosure included in this news release.

On Behalf of the Board of Directors,

"Chris Wensley"

Chris Wensley, Director & Chief Executive Officer

About Gold Runner Exploration Inc.

Gold Runner Exploration is an exploration company focused on the exploration and development of its portfolio of gold and silver properties located in prolific mining districts of Canada and the United States of America. In British Columbia, Gold Runner holds the option to acquire a 100% interest in the Golden Girl Property, located in the prolific Golden Triangle of Northwestern British Columbia. In North Central Nevada, the Company holds the Rock Creek gold project, the Falcon Mine project and the Dry Creek project, located in the Tuscarora Mountains in close proximity to the world-renowned Carlin Trend. Gold Runner also holds a 10% carried interest in the Cimarron project located in the San Antonio Mountains of Nye County, Nevada, within the Walker Lane Trend.

About B-ALL Syndicate Ltd.

The B-ALL Syndicate is a highly specialized geologic team of project generators with a proven track record of success. The Syndicate is focused in unexplored areas of glacial and snowpack retreat providing new opportunity for material discovery in renowned geologic terrain. Projects generated by the same team include Goliath Resources' Surebet discovery on the Golddigger Property, Juggernaut Exploration's Big One discovery as well as multiple additional material discoveries. More information is available at https://www.ball-syndicate.com/ .

For further information, please contact: Chris Wensley, Chief Executive Officer and Director 639 5 th Ave, Suite 1250 Calgary, Alberta T2P 0M9 Website: www.goldrunnerexploration.com Email: info@goldrunnerexploration.com

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Forward-Looking Information This news release includes certain information that may be deemed "forward-looking information" under applicable securities laws. All statements in this release, other than statements of historical facts, including but not limited to those that address the Company's summer exploration program, the properties exploration work and its results and potential, interpretations prospecting and exploration activities, geological, geophysical, and geochemical surveys, studies and interpretations of historical exploration and geological information, permitting, licences, environmental laws and regulations, changes in government regulations and laws, obtaining social licence to explore and operate, community engagements, timing of exploration activities, economic, competitive, reliance on third parties, the actual results of operations, and other risks of the natural resources industry, and mineral resource and reserve potential, exploration activities and events or developments that the Company expects is forward-looking information. There are certain factors that could cause actual results to differ materially from those in the forward-looking information and these include the results of the Company's summer exploration program, market prices, exploration successes, continued availability of capital financing, and general economic, market or business conditions, and those additionally described in the Company's filings with the Canadian securities authorities. Although the Company believes the expectations expressed in such statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the statements.

Investors are cautioned that any such statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking information. For more information on the Company, investors are encouraged to review the Company's public filings at www.sedarplus.ca . The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law .

NEITHER THE CANADIAN SECURITIES EXCHANGE NOR ITS REGULATION SERVICES PROVIDER HAS REVIEWED OR ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE

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TMX Newsfile

September 10, 2026 - 4:45 AM PDT

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