Vancouver, British Columbia--(Newsfile Corp. - July 6, 2026) - District Metals Corp. (TSXV: DMX) (Nasdaq First North: DMXSE SDB) (OTCQX: DMXCF) (FSE: DFPP); ("District" or the "Company") is pleased to announce that Expert Geophysics Surveys Inc. ("EGS") has been retained to conduct a helicopter-borne Mobile MagnetoTellurics System ("MobileMT") survey at the Alum Shale Properties (Figure 1) located in the Jämtland and Västerbottens Counties, north-central Sweden.
The MobileMT survey will comprise approximately 2,253 line kilometers at 400 meter line spacing over the Alum Shale Properties (Figure 1). In June 2025, the MobileMT survey successfully mapped out the mineralized Alum Shale host rock of the Viken Energy Metals Deposit, which has validated this geophysical survey for further use at the Company's Alum Shale Properties. Approximately half of the 151,329 hectare Alum Shale Properties were flown with the MobileMT Survey in July 2025 where numerous large and conductive anomalies were identified as potential targets for Alum Shale mineralization.
Priority follow up targets are expected to comprise the shallowest and thickest accumulations of mineralized Alum Shale. The relatively flat lying Alum Shale unit contains abundant graphite, resulting in a highly conductive signature associated with the Viken Deposit that was successfully delineated in detail by the June 2025 MobileMT survey. The survey demonstrated the effectiveness of MobileMT in mapping prospective mineralized Alum Shale horizons and refining drill targets across District's Alum Shale and Viken Properties.
Garrett Ainsworth, CEO of District, commented: "The decision to expand the MobileMT survey across our Alum Shale Properties is supported by the excellent results achieved at the Viken Deposit, where the survey successfully mapped the mineralized Alum Shale host rock and validated MobileMT as a highly effective exploration tool. With approximately half of our Alum Shales land package surveyed to date, we have already identified numerous large conductive anomalies that we have recently started to drill test at the Österkälen mineral license.
The extensive graphite content within the Alum Shale creates a strong conductive signature that can be effectively mapped using MobileMT. This next phase of surveying will significantly advance our understanding of the district-scale potential across our Alum Shale Properties and support our objective of discovering additional Viken-style Alum Shale deposits in Sweden."