Magna Terra Expands Rocky Brook Project, New Brunswick

Toronto, Ontario--(Newsfile Corp. - May 27, 2026) - Magna Terra Minerals Inc .  (TSXV: MTT)  (the " Company " or " Magna Terra ") is pleased to announce that it has expanded the footprint of the Rocky Brook Project ("Rocky Brook" or the "Project"), located in the prolific Bathurst Mining Camp ("BMC") of northern New Brunswick (Figure 1) . 7 claims totalling 5,770 hectares were strategically acquired via staking, covering known mineralized trends and geochemical anomalies. The acquired claims include: 2 large claims (4,080 ha) northeast of the Oxford Property that cover recently released stream sediment anomalies showing elevated gold, silver, and copper values; 2 claims (500 ha) located within the Fournier Lake Gold Property; 2 claims (895 ha) located immediately east of the Mount Ganong Trend on the Restigouche Property covering an area underlain by Tetagouche Group felsic volcanic rocks; and 1 claim (295 ha) located within the eastern end of the Boudreau Brook – Fossil Hill Property covering the McIntyre VMS prospect. "These additional property acquisitions continue our strategy of adding prospective ground, further expanding our district-scale Rocky Brook Project, which now totals 36,533 hectares.

The staking of these claims increases our footprint in an emerging gold district along the Rocky Brook – Millstream Fault, and associated splays at our Oxford and Fournier Lake Properties. As well, we continue to add strategic claims enhancing our land position within the well-established base metal VMS belt as we participate in the revival of the historic Bathurst Mining Camp. The addition of these new claims further solidifies our large exploration land holdings in the heart of an established mining camp that is experiencing a renewal, with numerous companies ramping up exploration activity within the greater BMC.

We continue to execute on our strategy of acquiring early-stage precious and critical metal projects that offer good value and discovery upside for our shareholders, and this highlights our conviction that New Brunswick and Atlantic Canada remain under-explored, presenting a compelling opportunity for exploration and discovery. We look forward to updating shareholders on our plans for our spring/summer field programs in the coming weeks." ~ Lew Lawrick, President and CEO, Magna Terra Minerals Inc. Rocky Brook Project Highlights VMS Highlights The Project covers a 40-kilometre extent of favourable California Lake felsic volcanic and sedimentary rocks that are host to the nearby Restigouche, Murray Brook, and Caribou Deposits; Identification of the Boudreau Brook-Fossil Hill Trend – a 15-kilometre trend of coincident geochemical and geophysical anomalies and historical prospects; Previous work at the Fossil Hill Zone has discovered high-grade copper-cobalt mineralization with grab samples* assaying up to 16.65% Cu and 0.64% Co ; Previous work at the Boudreau Brook prospect has discovered copper mineralization assaying up to 3% Cu ; The property covers the Restigouche C-4 and C-5 footwall Cu-rich "feeder" zones where previous historical drilling at the C-4 zone and in hole C-4 that intersected 4.36 m grading 0.2% Cu, 1.6% Pb, and 6.74% Zn (from 17.3 to 21.6 m). The best intersection in the C-5 zone was reported in hole C-5 that intersected 2.06% Cu and 0.57% Zn over 4.5 m (from 51.9 to 56.4 m); Located in the prolific Bathurst Mining Camp within the premier mining jurisdiction of New Brunswick; and Year-round accessibility with road access to the majority of the property.

Gold Highlights The Project also covers a 30-kilometre extent of the Rocky Brook-Millstream Fault system; Strategically positioned along strike from Kinross-Puma's Lynx Zone gold discovery and adjacent to the past-producing Caribou Mine and Murray Brook base metal deposits; and Recent discovery in 2023 of high-grade gold assays from grab samples* assaying up to 5.23 g/t Au over a 350 metre strike length at Fournier Lake. The Rocky Brook Project The Rocky Brook Project comprises 36,533 hectares in 83 mineral claims making the Company one of the single largest strategic landholders in this historic mining camp ( Figure 1 ). The Rocky Brook Project is located adjacent to and along strike from the Williams Brook Project, owned by Kinross Gold Corporation ("Kinross") and Puma, where a zone of high-grade gold mineralization was discovered over broad widths including drill intervals up to 5.55 g/t Au over 50.15 m (refer to Puma's news release dated September 15, 2021).

The Project is located adjacent to a 30-kilometre-long section of the Rocky Brook-Millstream Fault and associated McIntyre and Ramsay Brook faults; an important structural zone controlling gold mineralization within the region. The Project also covers volcanic and sedimentary rocks that show strong potential to host polymetallic Cu-Co-Pb-Zn-Au-Ag mineralization, adjacent to the past-producing Caribou Mine and the Murray Brook Deposit, which is the largest undeveloped VMS project in New Brunswick owned by Canadian Copper Inc. ( Figure 1 ). The Bathurst Camp The BMC is one of the world's oldest base metal (lead, zinc, copper, gold, and silver) mining districts hosting one of Canada's largest VMS deposits, with the past-producing Brunswick No. 12 Mine having operated for 49 years.

The BMC is host to over 46 mineral deposits, several of which have been mined, including the Brunswick No. 6, Heath Steele, Wedge, Stratmat, Half Mile Lake, Caribou and Murray Brook. A total of 136,643,367 tonnes of ore grading 3.44% Pb, 8.74% Zn, 0.37% Cu, and 102.2 g/t Ag were mined from the BMC (McCutcheon and Walker, 2020**). Figure 1: A map showing the location of the Rocky Brook Project, adjacent exploration projects, fault zones, and mineral occurrences.

To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/11586/298973_0cdd359744845b68_002full.jpg Qualified Person and Technical Notes This news release has been reviewed and approved by David A. Copeland, P.Geo., a "Qualified Person", under National Instrument 43-101 - Standard for Disclosure for Mineral Projects. All quoted drill core and rock samples results were compiled from historic assessment and government reports obtained from the government of New Brunswick. The Qualified Person has not completed sufficient work to validate these historic results. * Grab samples are selective by nature and may not represent the true metal content of the mineralized zone. **McCutcheon, S. R., & Walker, J. A. (2020).

Great Mining Camps of Canada 8. The Bathurst Mining Camp, New Brunswick, Part 2: Mining History and Contributions to Society. Geoscience Canada, 47(3), 143–166 About Magna Terra Magna Terra Minerals Inc. is a precious and critical metals focused exploration company, headquartered in Toronto, Canada.

Magna Terra is focused on acquiring and advancing its high-potential mineral projects in Atlantic Canada and Argentina while generating value for shareholders and minimizing shareholder dilution through option and joint venture partnerships where appropriate; leveraging our ability to explore, grow, and transact projects. The Company is focused on exploring our 100%-owned Humber Copper-Cobalt Project in Newfoundland and Labrador; our 100% owned Rocky Brook Gold and Critical Metals Project in the historic Bathurst Mining Camp of New Brunswick; the recently acquired Prospect Or's Dream Gold Project, and our 100%-owned Cape Spencer Gold Project in New Brunswick. In addition, the Company has optioned the Great Northern Project in Newfoundland to Gold Hunter Resources Inc. ("Gold Hunter") for total cash and share consideration of $10.075 million over a 4-year period, and currently holds an approximate 19% equity interest in Gold Hunter.

The Company has also optioned the Luna Roja Project in Argentina to Lunex Metals Corp (formerly Andean Metals Corp.) for total cash and share consideration of $2.375 million over a 4-year period. Further, the Company maintains a significant exploration portfolio in the province of Santa Cruz, Argentina which includes its large 100% owned Boleadora Project, as well as several additional district scale drill ready projects available for purchase or option/joint venture. Forward-Looking Statements 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 release.

Cautionary Statements Regarding Forward-Looking Information This news release contains forward-looking statements and forward-looking information (collectively, "forward-looking statements") within the meaning of applicable Canadian legislation. All statements in this news release that are not purely historical are forward-looking statements and include statements regarding beliefs, plans, expectations and orientations regarding the future including, without limitation, the ability of the Company to file a report that complies with National Instrument 43-101. Although the Company believes that such statements are reasonable and reflect expectations of future developments and other factors which management believes to be reasonable and relevant, the Company can give no assurance that such expectations will prove to be correct.

Forward-looking statements are typically identified by words such as: "believes", "expects", "anticipates", "intends", "estimates", "plans", "may", "should", "would", "will", "potential", "scheduled" or variations of such words and phrases and similar expressions, which, by their nature, refer to future events or results that may, could, would, might or will occur or be taken or achieved. In making the forward-looking statements in this news release, the Company has applied several material assumptions, including without limitation, and the ability of the author of the Technical Reports to finalize same. Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to differ materially from any future results, performance or achievements expressed or implied by the forward-looking information.

Such risks and other factors include the inability of the Company to execute its proposed business plans and carry out planned future activities. Other factors may also adversely affect the future results or performance of the Company, including general economic, market or business conditions, future prices of gold, changes in the financial markets and in the demand for precious metals, changes in laws, regulations and policies affecting the mineral exploration industry, and the Company's investment and operation in the mineral exploration sector, as well as the risks and uncertainties which are more fully described in the Company's annual and quarterly management's discussion and analysis and in other filings made by the Company with Canadian securities regulatory authorities under the Company's SEDAR+ profile at www.sedarplus.ca . Readers are cautioned that forward-looking statements are not guarantees of future performance or events and, accordingly, are cautioned not to put undue reliance on forward-looking statements due to the inherent uncertainty of such statements.

These forward-looking statements are made as of the date of this news release and, unless required by applicable law, the Company assumes no obligation to update the forward-looking statements or to update the reasons why actual results could differ from those projected in these forward-looking statements. FOR FURTHER INFORMATION PLEASE CONTACT: Magna Terra Minerals Inc. Lewis Lawrick President and CEO, Director Email: info@magnaterraminerals.com Website: www.magnaterraminerals.com To view the source version of this press release, please visit https://www.newsfilecorp.com/release/298973 Source: Magna Terra Minerals Inc.