BRON.V · 2026-05-28 11:30:00

Bronco Resources Commences 2026 Exploration Season At Placer Mountain Gold Project

Corporate Updates

May 28, 2026 – TheNewswire - BRONCO RESOURCES CORP. (TSX-V:BRON) (“Bronco” or the “Company”), is pleased to announce the commencement of the 2026 exploration season at its Placer Mountain Gold Project, located in the Similkameen Mining District, near Princeton, BC.

The Company has mobilized field crews to the Property and is currently completing a 5 x 5 km airborne LiDAR survey over the Main Zone and Kodiak Zone target areas. LiDAR is a remote sensing technology that uses pulsed lasers to create highly accurate 3D models of environments. The survey is being conducted by Tuzo GeoSurveys Corp. of Calgary, Alberta.

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Figure 1 – 2026 Season Planned Imagery Coverage (Ground Magnetics, LiDAR)

The Company expects the LiDAR survey to be completed shortly, with the final processed 3D Digital Elevation Model (DEM) anticipated in the coming days. Bronco believes the high-resolution elevation and terrain model generated from the survey will assist with:

Detailed topographic and elevation control
Surficial geology interpretation
Structural interpretation
Identification of previously unrecognized outcrop exposures

Following completion of the LiDAR survey, Bronco plans to use the new data set to help execute an approximately 1,000 sample combined rock and soil geochemical survey over the Eastern Palace and Grizzle target areas. Rock sampling and prospecting will be focused on any newly identified outcrop locations.

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Figure 2 – 2026 Grizzle and Eastern Palace Planned Soil Survey Coverage

Both the Grizzle and Eastern Palace target areas are interpreted to represent structurally modified intrusive rock with high potential for quartz veining, consistent with the Company’s developing combined structural and magnetic exploration framework at Placer Mountain.

The Company also plans to complete a Phase 2 high-resolution ground magnetic survey covering the Kodiak Zone and the airborne LiDAR survey grid extent. The ground magnetic survey will be completed on 25 metre spaced survey lines, with selected lines also receiving VLF–EM coverage to assist with structural interpretation and E–M conductor target definition.

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Figure 3 – Completed Phase 1 & Planned Phase 2 Magnetic Survey

Bronco believes the integration of LiDAR, ground magnetics, VLF-EM, geological observations, and geochemical datasets will continue to refine exploration targeting for follow up drilling across the Main Zone – Kodiak Zone corridor and surrounding target areas.

The Company expects the pre–drilling component of the 2026 exploration season to be completed by the end of July, with analytical results from rock and soil sampling anticipated by mid–August 2026.

Bronco Resources holds a current multi-year area-based (MYAB) permit for the project, with additional drilling expected by Q3 of 2026.

Qualified Person

R. Tim Henneberry, P.Geo, technical advisor to the Company, is the Qualified Person as defined by National Instrument 43-101 who has reviewed and approved the technical data in this report.

About Bronco

Bronco Resources Corp. is a TSX Venture Exchange listed mineral exploration company actively focused on the exploration of the Placer Mountain Gold Project, located in Princeton, BC, currently holding an 88%/12% JV between Bronco and Universal Copper Ltd. respectively. Bronco’s Board of Directors is seasoned in the mineral exploration industry with extensive successful domestic and international experience.

ON BEHALF OF THE BOARD OF DIRECTORS OF BRONCO RESOURCES CORP.

“Dev Rishy-Maharaj”

Dev Rishy-Maharaj, President and CEO

For additional information visit Bronco’s website at https:// www.broncoresources.com or contact:

Bronco Resources Corp.

Dev Rishy-Maharaj

Chief Executive Officer

Ph: (236) 763-6827

Forward-Looking Information

This press release contains certain forward-looking information and forward-looking statements within the meaning of applicable Canadian securities legislation (collectively, "Forward-looking Statements"). Any statements that are contained in this press release that are not statements of historical fact may be deemed to be Forward-looking Statements. Forward-looking Statements are frequently, but not always, identified by words such as "may", "will", "intends", "proposed", "believes", "continues", "plans", "expects" or similar expressions (or the negative and grammatical variations of any of these terms). Forward-looking Statements in this press release include, but are not limited to, statements with respect to: the Company's resource properties and future capital requirements; and the Company's plans, focus and objectives.

Forward-looking Statements involve various risks and uncertainties and are based on certain factors and assumptions. Although Bronco’s management considers these beliefs and assumptions reasonable based on currently available information, there can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Forward-looking Statements necessarily involve known and unknown risks, and important factors, among others, that could cause actual results to differ materially from the Company's expectations include: uncertainties related to the Company's ability to access investors for the Financing; the timeliness and success of regulatory approvals; fluctuations in copper and other commodity prices; uncertainties inherent in the exploration of mineral properties; risks associated with general economic conditions; changes in legislation, income tax and regulatory matters; currency and interest rate fluctuations; inability to access sufficient capital from internal and external sources.

Readers are further cautioned not to place undue reliance on Forward-looking Statements as there can be no assurances that the plans, intentions or expectations upon which they are placed will occur. The Company undertakes no obligation to update or revise any Forward-looking Statements, whether as a result of new information, future events or otherwise, except as may be required by law. New factors emerge from time to time, and it is not possible for Bronco to predict all of them, or assess the impact of each such factor or the extent to which any factor, or combination of factors, may cause results to differ materially from those contained in any Forward-looking Statement. Any Forward-looking Statements contained in this press release are expressly qualified in their entirety by this cautionary statement.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release.

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