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Midnight Sun Mining Extends Dumbwa Copper Deposit to Over 5.3 Kilometres; Remains Open Along Strike with Drilling Ongoing
Results include: 93m @ 0.40% Cu, 80m @ 0.39% Cu, 44m @ 0.53% Cu, and 36m @ 0.58% Cu VANCOUVER, British Columbia, May 13, 2026 (GLOBE NEWSWIRE) -- Midnight Sun
About this update from Midnight Sun Mining Corp.
[{"type":"text","content":"Results include: 93m @ 0.40% Cu, 80m @ 0.39% Cu, 44m @ 0.53% Cu, and 36m @ 0.58% Cu VANCOUVER, British Columbia, May 13, 2026 (GLOBE NEWSWIRE) -- Midnight Sun Mining Corp. (TSXV: MMA / OTCQX: MDNGF) (“Midnight Sun” or the “Company”) is pleased to report results from drillholes completed on its wholly owned Dumbwa copper deposit, located in Solwezi, Zambia. Dumbwa is in the southeast portion of the Company’s Solwezi Project, centered in the heart of the prolific Domes Region - flanked to the north by First Quantum’s Kansanshi mine and west by Barrick’s Lumwana mine. 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 (“km”) (see Figures 2 and 3), 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 (see below). The Company plans to host a technical webinar with Midnight Sun’s COO, Dr. Kevin Bonel, to discuss the results announced in this news release. Details will be included in a separate news release. Top 20 Drill Highlights: Hole ID From (m) To (m) Interval (m) Cu (%) DBW-25-099R 58 60 2 0.54 152 245 93 0.40 DBW-25-123 29 33.78 4.78 0.31 59 67 8 0.44 127 207 80 0.39 DBW-25-036 0 44 44 0.53 and 119.54 137 17.46 0.37 DBW-25-111 52 57 5 1.75 63 79 16 0.35 132 221 89 0.25 DBW-25-122 11 20.6 9.6 0.18 77 91 14 0.19 106 142 36 0.58 including 127 142 15 1.03 171 238 67 0.30 DBW-25-147 0 17 17 0.20 41 102 61 0.34 including 41 47 6 1.30 82 85 3 1.38 111 126 15 0.27 154 168.05 14.05 0.51 182 183 1 1.34 DBW-25-064 0.7 47 46.3 0.42 DBW-25-114 26 32 6 0.21 43 87 44 0.37 122 208.5 86.5 0.15 DBW-25-149 23 40.84 17.84 0.85 Including 31 39 8 1.71 50.58 72 21.42 0.38 171 197.65 26.65 0.38 DBW-25-110 42 77 35 0.36 89 102 13 0.34 145 154 9 0.20 DBW-25-06...