Chesapeake Gold Receives a U.S. Patent for Enhanced Metal Recovery from Sulphide Ores

About this update from Chesapeake Gold Corp.

Vancouver, British Columbia--(Newsfile Corp. - April 23, 2026) - Chesapeake Gold Corp. (TSXV: CKG) (OTCQX: CHPGF) ("Chesapeake" or the "Company") is pleased to announce that it has received a U.S. Patent (U.S. Patent Number 12,595,529) for its proprietary method of enhanced metal recovery from sulphide ores. The patent, awarded by the U.S. Patent and Trademark Office, represents a significant achievement in Chesapeake's heap oxidation technology ("Technology"). Jean-Paul Tsotsos, Chief Executive Officer of Chesapeake, stated, "The U.S. patent is an important milestone for Chesapeake. The patent protects Chesapeake's Technology and reinforces the strength of our intellectual property. The patent supports our corporate strategy to build shareholder value from the Technology, unlocking economic value from refractory sulphide gold and silver projects." In addition to the issued U.S. Patent Number 12,595,529, Chesapeake has patents issued and pending in the U.S., Canada, Argentina, Australia, Brazil, Chile, Mexico, Peru and Africa. Chesapeake continues to optimize its technologies and expand its patent portfolio by filing patent applications for its inventions and improvements. For Further Information: For more information on Chesapeake, its Metates and Lucy Projects or proprietary heap oxidation technology, please visit our website at www.chesapeakegold.com or contact Jean-Paul Tsotsos at [email protected] or +1 778 731 1362. 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 news release. About Chesapeake Chesapeake Gold Corp.'s flagship asset is the Metates Project ("Metates") located in Durango State, Mexico. Metates hosts one of the largest undeveloped gold-silver deposits in the Americas[1] with over 16.77 million ounces of gold at 0.57 grams per tonne (g/t) and 423.2 million ounces of silver at 14.3 g/t within 921.2 million tonnes in the Measured and Indicated Mineral Resource category and a further 2.13 million ounces of gold at 0.47 g/t and 59.0 million ounces of silver at 13.2 g/t within 139.5 million tonnes in the Inferred Mineral Resource category. See the technical report titled "Metates Sulphide Heap Leach Project Phase I" dated ...

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