(via TheNewswire)

This announcement does not constitute an offer of the securities described herein.

Brossard, Quebec - TheNewswire - December 4, 2025 — Windfall Geotek Inc. (CSE: WIN, OTCQB: WINKF) (“Windfall”), a leader in AI-powered mineral exploration since 2005, is pleased to report that its proprietary AI System has identified a 3 km grassroots gold target in the Casa Berardi region of Quebec, based on the analysis of publicly available geological datasets.

Windfall’s AI System analyzed over 24,000 historical gold-bearing assays , applying advanced machine learning to detect patterns and geological contexts predictive of gold. More than 5.2 million cells were scored to highlight the most prospective areas, reducing the search area by up to 98–99% and significantly improving exploration efficiency compared to traditional methods.

Windfall clarifies that it does not hold any ownership interest in the properties referenced and that this analysis was conducted solely to demonstrate the capabilities of its AI exploration technology using publicly available data. No partnership or contractual relationship exists with any property owners in the region.

Advisory Committee

Windfall is pleased to welcome André Larente , CEO/President of Diagnos, to its Advisory Committee, further strengthening the Company’s strategic direction and technical depth.

• André Larente is President of Diagnos and has held senior management roles at Siemens, Syscan International, Newbridge Networks, Legent, Cognos, Tandem Computers, and Honeywell Information Systems. His extensive experience in technology and operations provides valuable strategic insight. 

A total of 13 million Stock Options has been granted to directors, officers, employees, and consultants of the Company. The Stock Options are exercisable at $0.05 CAD per share for a period of 5 years from the date of grant.

You can view the Detour Quebec Orogenic gold project Work Summary began in 2016 on our website here:
https://www.windfallgeotek.com/wp-content/uploads/2025/04/Detour_Quebec_Orogenic_Gold_Project_Work_Summary.pdf

Windfall Geotek – AI-Powered Discovery Since 2005

Windfall Geotek is a global leader in AI-driven mineral exploration, turning complex geoscience data into high-potential discoveries with unmatched speed and accuracy. With a multidisciplinary team of geophysicists, geologists, AI specialists, and mathematicians, Windfall is expanding its AI expertise into life-saving applications, including landmine and UXO detection. As part of its new business plan, Windfall will validate selected AI-generated targets, demonstrating to the market the power and reliability of its AI system.

Innovative, proven, and scalable, Windfall delivers tangible results, real-world impact, and strong growth potential.

For further information, please contact:

Michel Fontaine 514-994-5843

Chairman, President and CEO of Windfall Geotek

Email: Michel@windfallgeotek.com

Website:  www.windfallgeotek.com

Additional information about the Company is available under Windfall Geotek’s profile on SEDAR at www.sedar.com . Neither the TSX Venture Exchange nor does its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this release.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING INFORMATION: This news release contains forward-looking information, which relate to future events or future performance and reflect management’s current expectations and assumptions. The information in this news release about changes to management and expectations in this regard; and any other information herein that is not a historical fact may be forward-looking information. Such forward-looking information reflect management’s current beliefs and are based on assumptions made by and using information currently available to the Company. Such factors include, but are not limited to, achievements of new management varying significantly from expectations; capital and operating costs varying significantly from estimates; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; and those risks set out in the Company’s public documents filed on SEDAR (www.sedar.com) under Windfall Geotek’s issuer profile. Investors are cautioned that these forward-looking statements are neither promises nor guarantees, and they are subject to risks and uncertainties that may cause future results to differ materially from those expected. These forward-looking statements are made as of the date hereof and, except as required under applicable securities legislation, the Company does not assume any obligation to update or revise them to reflect new events or circumstances.

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