Duyuru • May 15
Midnight Sun Mining Corp Reports Dumbwa Copper Deposit Drilling Results Midnight Sun Mining Corp. has reported results from drillholes completed on its wholly owned Dumbwa copper deposit, located in Solwezi, Zambia. Drilling has now surpassed 200 holes for a total of over 42,000 metres (“m”) and results to date confirm near surface copper sulphide mineralisation, over a continuous strike length of 5.3 kilometres, with assays received for the first ~4km of drilled strike. The initial discovery and delineation drill program continues with 4 rigs focussed on growing the deposit to the north along strike and to extend previously drilled mineralisation east and west. Quality control issues related to laboratory analysis have been resolved, and the related backlog of assays are now largely caught up. The Company’s drilling has now surpassed 200 holes for a total of more than 42,000m over 5.3km of strike, and continues to confirm that Dumbwa is an exceptionally large, very near surface, structurally controlled copper sulphide deposit which remains open for growth. Drill testing has focussed on the upper ~220m of the deposit with the intent of defining a resource amenable to rapid, low strip ratio, low-cost future development. It is noted that some areas of similar mineralisation at the nearby Lumwana project can be traced to vertical depths well beyond 200m. At Dumbwa, east-west width of the mineralised corridor ranges from 200m to greater than 500m. Copper grades are variable ranging from thick lower grade intercepts (> 50 m @ <0.3%) to thick higher-grade intercepts (>25m@>0.5%). Grade variability is pronounced along strike (north-south) and is influenced by cross-cutting northwest-southeast structures that adversely affect the strain regime and subsequent development of mineralised schists. In contrast, grades are relatively consistent east-west within the higher, medium and lower grade zones, and across the width of the mineralised corridor. Detailed lithological and structural logging is showing the Dumbwa copper deposit to be a stacked series of horizontal to shallow east dipping copper sulphide mineralised biotite and biotite-muscovite schists (“2 mica schists”) within a barren grey and pink basement gneiss sequence. The schists form in an intimate relationship with strain which has resulted in the schists being variably developed over the 5.3 km that have been drilled to date. Simply put, increasing strain leads to greater schist development, which in turn results in higher copper sulphide concentration. The relationship between high tectonic strain and the evolution of the copper-bearing schists is very clear, and the similarity between Lumwana and Dumbwa has been well established. Drilling was conducted using a conventional diamond drilling rig and drill core was captured for the entirety of each hole and placed into plastic core trays. All drill holes were cored in PQ until stable ground was achieved and then reduced to HQ size for the remainder of each hole. Sampling was based on visible copper mineralisation, and sample intervals honoured any important lithological boundaries. Core was then cut in house using a diamond saw and the right half of core was placed into a 200-micron plastic bag, assigned a unique sample number, and recorded into GeoSpark logging system. Samples always remained under the supervision of Midnight Sun staff to maintain chain of custody. All samples were then delivered to SGS Labs located in Kalulushi, Zambia, a fully accredited laboratory. Once received, the samples were sorted, dried, crushed, and pulverized (SGS code PRP90) followed by four-acid digest with ICP-OES finish (SGS Code ICP42S). Copper range of detection is 0.01-10%. Midnight Sun follows an in-house QA/QC program that consists of a random insertion every 10th sample of either a coarse blank, fine blank, coarse duplicate, fine duplicate, or Certified Reference Material (standards). Duyuru • Jan 29
Midnight Sun Mining Corp. Reports Assay Results from 28 Holes, Totaling 5,247.30 Metres, from its 100% Owned Dumbwa Target, Located in Solwezi, Zambia Midnight Sun Mining Corp. reported assay results from 28 holes, totaling 5,247.30 metres ("m"), from its 100% owned Dumbwa Target, located in Solwezi, Zambia. Ongoing drilling continues to significantly extend the mineralized system at Dumbwa along strike. Highlights of Drilling include: DBW-25-021 intercepted 0.89% Cu over 25m. 4 separate mineralized zones were intercepted within the hole. DBW-25-030 intercepted 0.46% Cu over 50m, including 1.36% Cu over 6m. DBW-25-027 intercepted 0.48% Cu over 21.85m. Duyuru • Jan 20
Midnight Sun Mining Corp. Announces Resource Estimate for Kazhiba Main Copper Oxide Deposit Midnight Sun Mining Corp. announced the completion of a maiden Mineral Resource Estimate for the near-surface Kazhiba Main Oxide Copper Deposit, located in Solwezi, Zambia. The maiden Mineral Resource Estimate ("MRE") consists of 2.33 million tonnes of Indicated mineral resources grading 1.41% copper (Cu) at a selected base case cut-off of 0.10 % Cu over all rock type categories. The effective date of the MRE is January 20, 2026. The MRE was completed by Dexter Ferreira, senior geostatistician, mining engineer and geologist, and a registered member of the South African Council of Natural Scientific Professionals. Mineral resources are reported using the 2014 CIM Definition Standards and were estimated using the 2019 CIM Best Practices Guidelines, as required National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"). The MRE is undiluted and in situ, constrained by a localized digital terrain model using all drill hole collars in 3D space. Mr. Ferreira was responsible for the Kazhiba Copper Oxide Mineral Resource Estimate and has approved the scientific and technical information pertaining to the Mineral Resource Estimate in this news release. Duyuru • Oct 29
Midnight Sun Mining Corp. announced that it has received CAD 25.904239 million in funding On October 28, 2025, Midnight Sun Mining Corp. closed the oversubscribed transaction. The company issued 19,188,325 units at a price of CAD 1.35 for gross proceeds of CAD 25,904,238.75 and 3,386,175 additional units at a price of CAD 8 for gross proceeds of CAD 4,571,336.25 as part of the overallotment option, the company issued a total of 22,574,500 units at a price of CAD 8 for gross proceeds of CAD 30,475,575, including the full exercise of the Underwriters’ Option. The company has agreed to grant the underwriters an option to purchase up to an additional 15% of the proceeds. Each Unit consists of one common share in the capital of the Company and one half of one common share purchase warrant of the Company. Each Warrant entitles the holder thereof to acquire one common share in the capital of the Company at a price per Warrant Share of CAD 2.00 until October 28, 2027. In consideration for their services, the Company paid the Underwriters a cash commission equal to 6.0% of the gross proceeds from the Offering and issued to the Underwriters transferable compensation options entitling the Underwriters to purchase up to that number of Common Shares as is equal to 6.0% of the aggregate number of Units sold under the Offering at a price per Common Share equal to the Issue Price until October 28, 2027. The Offering remains subject to the final approval of the TSX Venture Exchange (the “TSXV”). The Units issued to Canadian resident subscribers under the LIFE Exemption are not subject to a hold period pursuant to applicable Canadian securities laws. Duyuru • Oct 03
Midnight Sun Mining Corp. announced that it expects to receive CAD 10.0008 million in funding Midnight Sun Mining Corp. announced a bought deal offering for private placement to issue 7,408,000 units at an issue price of CAD 1.35 for the proceeds of CAD 10,000,800 on October 2, 2025. Each Unit will consist of one common share and one-half of one common share purchase warrant. Each Warrant will entitle the holder thereof to acquire one common share in the capital of the Company at a price per Warrant Share of CAD 2.00 for a period of 24 months from the Closing Date. The Company has agreed to grant the Underwriters an option (the “Underwriters’ Option”) to purchase up to an additional 15% of the Offering in Units at the Issue Price for additional gross proceeds to the Company of up to CAD 1,500,120. The Units to be issued under the Offering pursuant to the LIFE Exemption will be offered to purchasers in each of the provinces of Canada, except Québec, and will not be subject to resale restrictions pursuant to applicable Canadian securities laws. The Units to be issued under the Offering pursuant to the Private Placement Exemptions will be subject to a hold period in Canada expiring four months and one day from the closing date of the Offering. The Offering is expected to close on or about October 28, 2025. Transaction is subject to regulatory and stock exchange approval. In consideration for their services, the Company has agreed to pay the Underwriters a cash commission equal to 6.0% of the gross proceeds from the Offering and issue to the Underwriters transferable compensation options. Duyuru • Jul 17
Midnight Sun Mining Corp. Announces Phase-One Dumbwa IP Results Midnight Sun Mining Corp. announced the completion of phase one of the 56 line-kilometre dipole-dipole induced polarization survey ("IP Survey") on its Dumbwa Target at the Company's Solwezi Project in Zambia. This first phase of the IP survey covered a total of 11.5 kilometres of strike length at 500 metre to 250 metre eastwest oriented line spacings, over the southern portion of the north-south trending Dumbwa geochemical copper anomaly. The IP Results correlate with previous drill-identified mineralization, within the geochemical anomaly. For the first time, this provides Midnight Sun's technical team with a detailed visual interpretation of the mineralized horizons which comprise the Dumbwa Target. The results of this phase of the IP Survey will drive placement of drill locations for the upcoming Dumbwa Drill Program. IP Results Explained: The initial phase of the dipole-dipole IP survey, covering the southern 11.5 kilometres of strike extent, has illustrated the structural architecture of the Dumbwa Target which is pivotal in understanding the geometry of the target. The resulting interpretation of the IP results have revealed a horizon that varies from quite flat lying and gently sloping, while other areas show convincing evidence for folding from open folds to very tight upright folds. A strong correlation exists between mineralized intervals intercepted in previous drilling at Dumbwa and the interpreted target horizon derived from the IP survey. Additionally, a positive correlation has been identified between the target horizon and the overlying soil anomaly. The IP survey also identified several major cross-cutting structures that help explain the offset between historical soil geochemistry and previously drilled mineralization. With an understanding of the geometry of the target horizon at Dumbwa, Midnight Sun has commenced planning an initial diamond drill program along the southern 11.5-kilometer strike length of the Dumbwa Target. The drill program is scheduled to commence in approximately two weeks' time. 