Midnight Sun Initiates Drilling at Flagship Dumbwa Target
Vancouver, British Columbia--(Newsfile Corp. - August 6, 2025) - Midnight Sun Mining Corp. (TSXV: MMA) (OTC Pink: MDNGF) ('Midnight Sun' or the 'Company') is pleased to announce that diamond drilling has commenced at the Company's flagship Dumbwa Target on the Solwezi Project in Zambia.
Drill locations were finalized following a rigorous analysis and review of all available data, including geochemical sampling, airborne VTEM survey, previous drill results, and the recent dipole-dipole induced polarization ('IP') survey ( see press release dated July 17, 2025 ).
The drill program has begun with one diamond drill rig, and a second drill is en route and scheduled to arrive on site shortly to expedite the program.
Midnight Sun's COO, Kevin Bonel, states: 'When I first visited Dumbwa almost two years ago, it immediately brought to mind my early days working on Lumwana—now a crown jewel of Barrick's copper portfolio and one of the largest deposits in Zambia. The similarities between the two sites were remarkable, and I quickly recognized the geological traits they shared. Both are hosted in basement dome geology, exhibit layered mineralization, and show extensive copper clearings at surface highlighting the strength of these systems. I knew right away this was a project I wanted to be a part of. Now, as we progress at Dumbwa, that excitement continues to remain high. Applying the same approach my team and I used at Lumwana, we've carefully interpreted the promising results from the IP survey in the context of previously existing data, and I believe this has provided a clear roadmap to defining Dumbwa's potential.'
The initial focus is to confirm and correlate disseminated copper sulphide mineralization with the target horizon as interpreted by the IP chargeability response. The initial hole is situated on the eastern half of IP Line 2 and tests a very strong chargeability anomaly.
About Dumbwa:
Dumbwa represents a near-surface, low-strip, bulk-tonnage exploration target with geology and mineralization closely resembling Barrick's Lumwana Mine, ~60 kilometres to the west. Dumbwa boasts a high-grade copper-in-soil anomaly extending ~20 kilometers along strike and more than 1 kilometer wide, with peak copper values reaching 0.73%. Previous drilling has confirmed sulphide copper mineralization, but additional drilling guided by structural controls is needed to better define the dip, continuity, size, and scale of the system. Multiple stacked mineralized horizons have been identified, which appear to be similar in deposition to those found at the Lumwana Mine.
The recent dipole-dipole IP survey, covering the southern 11.5 kilometers of the strike extent, has revealed the structural framework of the Dumbwa target, critical for understanding its geometry. The interpreted IP results indicate a horizon that varies from relatively flat-lying and gently dipping, to areas with clear evidence of folding, ranging from open folds to very tight upright folds. There is a strong correlation between the mineralized intervals encountered in prior drilling at Dumbwa and the target horizon interpreted from the IP data. Additionally, a positive relationship exists between this horizon and the overlying soil anomaly. The interpreted IP survey also identified several major cross-cutting structures, which help explain offsets between historical soil geochemistry and previously drilled mineralization.
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Dumbwa Drill Collar Location 1
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Qualified Person: Darin Labrenz, P.Geo., a consulting geologist for the Company and Qualified Person under NI 43-101, has reviewed and approved the technical data and contents of this release.
About Midnight Sun
Midnight Sun is focused on exploring our flagship Solwezi Project, located in Zambia. Situated in the heart of the Zambia-Congo Copperbelt, the second largest copper producing region in the world, our property is vast and highly prospective. Our Solwezi Project is surrounded by producing copper mines, including Africa's largest copper mining complex right next door, First Quantum's Kansanshi Mine. Led by an experienced geological team with multiple discoveries and mines around the world to their credit, Midnight Sun's goal is to find and develop Zambia's next generational copper deposit.
ON BEHALF OF THE BOARD OF MIDNIGHT SUN MINING CORP.
Al Fabbro
President & CEO
For Further Information, Contact:
Adrian O'Brien
VP Business Development and Communications
Tel: +1 604 809 6890
Em: [email protected]
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 NEWS RELEASE.
This news release contains 'forward-looking statements' within the meaning of the applicable Canadian securities legislation that are based on expectations, estimates, assumptions, geological theories, and projections as at the date of this news release. The information in this news release about any information herein that is not a historical fact may be 'forward-looking statements.' Any statement that involves discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions, future events or performance (which may, but not always, include phrases such as 'anticipates', 'plans', 'scheduled', 'believed' or 'intends' or variations of such words and phrases or stating that certain actions, events or results 'may' or 'could', 'would', 'might' or 'will' be taken to occur or be achieved) are not statements of historical fact and may be forward-looking statements and are intended to identify forward-looking statements.To view the source version of this press release, please visit https://www.newsfilecorp.com/release/261404
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