File: '\\swfile\EmailIn\20250918 072114 Attachment RushGold_NR_Aster_Sept18 (1).docx'

NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Rush Gold Corp. Reports on ASTER Image Processing and Highlights Epithermal System Footprint for Skylight Property

VANCOUVER, BC, September 18, 2025 - Rush Gold Corp. ("Rush" or the "Company") (CSE: RGN | FSE: B6H) is pleased to announce the results of a recently completed *Advanced Spaceborne Thermal Emission and Reflection Radiometer ("ASTER") satellite image processing.

"The ASTER spectral alteration study results at Skylight, highlight the presence of a widespread precious metal hydrothermal system, says Anthony Zelen, CEO of Rush Gold, he continues, these findings give us better insights into Skylight's mineralization, guiding exploration toward targets with the strongest potential to create shareholder value."

Image processing of publicly available ASTER shortwave infrared ("SWIR") and near-infrared ("VNIR") bands was completed over the Skylight Property located 60 km northwest of Tonopah in the Royston Hills, Nye County, Nevada. Skylight ASTER image processing has highlighted the presence of combined N-S tending lateritic iron, kaolinite clay, and silica quartz index anomalies that are interpreted to represent alteration footprint of a low-sulphidation epithermal gold-silver system over 1.2 km (Figure 1).

Prior exploration at Skylight which included reconnaissance rock and soil geochemical sampling and limited reverse circulation (RC) drilling indicates that these new alteration anomalies are consistent with anomalous arsenic and silver in soil; gold and silver in rock samples; and RC drilling gold and silver anomalies; in addition to the presence of argillic alteration and dickite clay as identified by hyperspectral analysis of surface rock samples Technical Report for the Skylight Property, Nye County, Nevada, United States, prepared by Matthew R. Dumala, P.Eng. for Rush Gold Corp, with an effective date of January 10, 2025, is filed under Rush God Corp.'s Issuer Profile on SEDAR+ (www.sedatplus.ca).

.

The ASTER alteration anomalies are observed to flank surface outcrop mapping which indicates the presence of a possible preserved silica cap. The combined exploration dataset to date at Skylight indicates the presence of a significant potentially intact low sulfidation epithermal gold-silver system, which remains largely untested.

Figure 1: Skylight Property Aster Exploration Targets

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by Kristopher J. Raffle, P.Geo. (BC), Principal and Consultant of APEX Geoscience Ltd. of Edmonton, AB, who is a director of Rush Gold Corp. and a "Qualified Person" as defined in National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Mr. Raffle has verified the data, which included a review of the sampling, analytical and test methods underlying the data, information and opinions disclosed herein.

*The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is an imaging instrument onboard Terra, the flagship satellite of NASA's Earth Observing System (EOS).

About Rush Gold Corp.

Rush Gold is a Canadian mining exploration company focused on advancing its Skylight gold property, located in the Republic Mining District, Nye County, Nevada, in the USA.

For further information, please contact:

Anthony Zelen, Director and Chief Executive Officer

T: (778) 388 5258

E: investors@rushgoldcorp.com

https://rushgoldcorp.com

Forward-Looking Statements The information in this news release includes certain information and statements about management's view of future events, expectations, plans and prospects that constitute forward-looking statements, including statements respecting the anticipated trade date for the Common Shares on the CSE, the expected use of proceeds from the Offering and the Company's plans for its Skylight property. These statements are based upon assumptions that are subject to significant risks and uncertainties. Because of these risks and uncertainties and as a result of a variety of factors, the actual results, expectations, achievements or performance may differ materially from those anticipated and indicated by these forward-looking statements. Any number of factors could cause actual results to differ materially from these forward-looking statements as well as future results. Although the Corporation believes that the expectations reflected in forward-looking statements are reasonable, it can give no assurances that the expectations of any forward-looking statements will prove to be correct. Except as required by law, the Corporation disclaims any intention and assumes no obligation to update or revise any forward-looking statements to reflect actual results, whether as a result of new information, future events, changes in assumptions, changes in factors affecting such forward-looking statements or otherwise. The Canadian Securities Exchange has not reviewed this press release and does not accept responsibility for the adequacy or accuracy of this news release.