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Founders Metals Commences Airborne Geophysics and Auger Sampling Programs at Antino

Exploration Programs

Founders Metals Commences Airborne

Geophysics and Auger Sampling Programs at

Antino

Vancouver, British Columbia--(Newsfile Corp. - September 18, 2025) -

Founders Metals Inc.

(TSXV:

FDR) (OTCQX: FDMIF) (FSE: 9DL0) ("Founders" or the "Company") is pleased to announce the start of

property-wide geophysical and geochemical surveys at the Antino Gold Project ("Antino" or "Project") in

southeastern Suriname (Figure 1). The surveys are intended to support growth-focused drilling around

current targets, further improve the Company's understanding of regional-to-deposit scale controls on

gold mineralization, and identify new exploration targets.

Colin Padget, President & CEO, commented,

"More than half of the Antino Property remains

completely unexplored by modern systematic exploration methods. This fall we intend to complete

property-wide auger sampling at a spacing that has been effective at identifying major gold occurrences

elsewhere at Antino. Additionally, the concurrent airborne geophysical surveys use the latest technology

to provide high-resolution datasets that we believe are key to unlocking the full exploration potential of

the target-rich geological environment at Antino. We are continuing aggressive exploration drilling on the

project with our ongoing 60,000 m program, and we look forward to providing an update to the market

with results in the near-term."

Auger Sampling

As shown in Figure 2, extensive property wide auger sampling programs comprising approximately

8,000 samples are underway to:

Extend recent and historical auger grids to gain full regional coverage across Antino at 400 m line

spacing with 50 m sample spacing along lines

Infill regional coverage at 200 m line spacing over areas of historical auger gold anomalies and

where mapping/prospecting work identified quartz veining and shearing at surface

Construct targeted 100 m line spaced grids over the Maria Geralda, Van Gogh, and Da Vinci gold

trends (in progress). These more tightly spaced grids provide higher resolution geochemical data

over regional-scale structures linked to Antino gold mineralization.

Airborne Geophysics

Founders has engaged Expert Geophysics Surveys Inc. to conduct a coincident airborne time-domain

electromagnetic (EM) and magnetics survey at 100 m line spacing across the entire Project (Figure 3).

The helicopter flown TargetEM26 system employed will deliver high resolution 3D conductivity-resistivity

and magnetics data to up to 300 m vertical depth below surface. This system is widely recognized for its

effectiveness in similar geologic terranes where it is known to successfully delineate key geological

features associated with gold mineralization such as major faults, fold patterns, and the presence of

intrusive complexes. These high-resolution datasets will aid in drill targeting on Founders' intermediate

and emerging target areas as well as give new insights into areas that, to date, remain completely

unexplored. Founders expects preliminary data from these surveys by mid Q4.

Ongoing Work at Antino

Founders Metals continues to aggressively advance drilling at Antino, with four drills turning: two drills at

Upper Antino, one newly arrived drill at Parbo, and one drill at Maria Geralda. Current work includes:

Continued drilling at Upper Antino to extend gold mineralization along strike and between Froyo

and Donut

Maiden 2,000 m drill program now underway at the Parbo target

Increased drill program at Maria Geralda following up on initial results in MG003 of

22.5 m of

11.88 grams per tonne (g/t) gold (Au) and subsequent 1,300 m long auger gold anomaly

Ongoing trenching, mapping, and prospecting to provide structural context for the second phase of

drilling across high-priority targets including Van Gogh, Da Vinci, and Lawa during this dry season

Figure 1:

Antino Property Map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/266950_58cdd6e9942ef8d6_001full.jpg

Figure 2: Planned Auger Survey

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/266950_58cdd6e9942ef8d6_002full.jpg

Figure 3:

Geophysics Survey Map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/266950_58cdd6e9942ef8d6_003full.jpg

Notice of Change of Auditor

The Company's Board of Directors ("BoD") has appointed Davidson & Company LLP as the

Company's new auditor, replacing MS Partners LLP ("MS Partners"). MS Partners resigned as auditor

of the Company effective September 8, 2025. Davidson & Company LLP was appointed as the

Company's auditor effective September 15, 2025. The Company has filed Notices of Change of Auditor

in respect of this change under its profile on SEDAR+ at

www.sedarplus.ca

.

About Founders Metals Inc.

Founders Metals is a Canadian-based exploration company focused on advancing the Antino Gold

Project located in Suriname, South America, in the heart of the Guiana Shield. Antino is 20,000 hectares

and has produced over 500,000 ounces of gold from historical surface and alluvial mining to date1. The

Company is systematically advancing one of Suriname's most promising gold exploration and

development opportunities with drill-confirmed, district-scale potential. Founders is committed to

responsible exploration, community engagement, and delivering long-term value to shareholders through

technical excellence and strategic growth in the Guiana Shield.

1

2022 Technical Report - Antino Project; Suriname, South America. K. Raffle, BSc, P. Geo & Rock Lefrançois, BSc, P.Geo.

ON BEHALF OF THE BOARD OF DIRECTORS,

Per: "Colin Padget"

Colin Padget

President, Chief Executive Officer, and Director

Contact Information

Katie MacKenzie, Vice President, Corporate Development

Tel: 306 537 8903 |

[email protected]

Harp Gosal, Director, Investor Relations

Tel: 236 301 4211 |

[email protected]

Cautionary Statement Regarding Forward-Looking Information

This press release contains "forward-looking information" within the meaning of applicable Canadian

securities legislation, including statements regarding the use of proceeds from the Company's recently

completed financings and the Company's prospects. Forward-looking information can generally be

identified by words such as "plans", "expects", "is expected", "budget", "scheduled", "estimates",

"forecasts", "intends", "anticipates", "believes", or variations indicating that certain actions, events or

results "may", "could", "would", "might" or "will" occur or be achieved.

Forward-looking statements are based on management's current expectations and reasonable

assumptions but are subject to business, market, and economic risks, uncertainties, and contingencies

that may cause actual results to differ materially from those expressed or implied, including: general

business and economic uncertainties; exploration results; mining industry risks; and other factors

described in the Company's most recent annual management discussion and analysis. Although the

Company has attempted to identify important factors that could cause actual results to differ materially,

other factors may cause results not to be as anticipated. There can be no assurance that forward-looking

information will prove accurate, as actual results and future events could differ materially from those

anticipated. Accordingly, readers should not place undue reliance on forward-looking information. The

Company does not undertake to update any forward-looking information except in accordance with

applicable securities laws. 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.

All material information on Founders Metals can be found at

www.sedarplus.ca

.

Quality Assurance and Control

Samples were analyzed at FILAB Suriname, a Bureau Veritas Certified Laboratory in Paramaribo,

Suriname (a commercial certified laboratory under ISO 9001:2015). Samples are crushed to 75%

passing 2.35 mm screen, riffle split (700 g) and pulverized to 85% passing 88 µm. Samples were

analyzed using a 50 g fire assay (50 g aliquot) with an Atomic Absorption (AA) finish. For samples that

return assay values over 5.0 grams per tonne (g/t), another cut was taken from the original pulp and fire

assayed with a gravimetric finish. Founders Metals inserts blanks and certified reference standards in

the sample sequence for quality control. External QA-QC checks are performed at ALS Global

Laboratories (Geochemistry Division) in Lima, Peru (an ISO/IEC 17025:2017 accredited facility).  A

secure chain of custody is maintained in transporting and storing of all samples. Drill intervals with visible

gold are assayed using metallic screening. Rock chip samples from outcrop/bedrock are selective by

nature and may not be representative of the mineralization hosted on the project.

Qualified Persons

The technical content of this news release has been reviewed and approved by Michael Dufresne,

M.Sc., P.Geol., P.Geo., an independent qualified person as defined by National Instrument 43-101.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/266950