Mr. Mario Pezzente reports

GERMANIUM MINING CORP. JOINS CRITICAL MINERALS INSTITUTE

Germanium Mining Corp. has joined the Critical Minerals Institute (CMI), a leading international organization for the critical minerals economy serving as a central hub that connects companies, capital markets and policymakers across the exploration, supply chain and geopolitical landscape.

Mario Pezzente, chief executive officer, commented: "Joining the Critical Minerals Institute reflects our commitment to positioning Germanium Mining Corp. at the forefront of the critical minerals conversation. CMI provides direct access to the institutional investors, government decision makers and industry leaders shaping the future of critical mineral supply chains globally. As germanium moves further to the centre of national security and advanced technology policy, membership in CMI ensures we remain engaged where it matters most. "

Membership in CMI provides the company with access to monthly CMI Masterclasses, the weekly Critical Minerals Report, bespoke research, and board-level advisory services spanning exploration, finance, supply chain strategy and geopolitics. The CMI also organizes its flagship Annual Critical Minerals Institute Summit, a global gathering of government leaders, institutional investors and industry executives. The upcoming CMI Summit V, themed "The New Critical Minerals Economy," is scheduled for May 13 to May 14, 2026, in Toronto, Canada.

About Lac Du 35 Km germanium project

Germanium Mining recently announced on April 2, 2026, the closing of the first tranche of financing for its coming 2026 exploration programs at the 100-per-cent-owned Lac Du Km 35 germanium project, which hosts the Laganiere showing, which returned a value of 0.02 per cent (186 parts per million) germanium and is currently the highest germanium value ever reported from an outcrop in the province of Quebec.

Planning for drill permit applications and a 2026 property-wide airborne magnetic and electromagnetic survey is now under way. This airborne survey will assist the company in identifying high-priority exploration targets for the coming field season by outlining electromagnetic and magnetic conducting anomalies as well as prominent structural features.

The airborne survey data will be integrated with recent remote sensing results, which have already outlined new structural corridors and circular features interpreted to be potentially prospective for germanium mineralization. Together, these data sets are expected to significantly refine and prioritize areas for outcrop sampling across the property before conducting a first-phase drilling program.

At the Laganiere germanium showing, remote sensing has identified a prominent circular feature approximately 300 metres in diameter, the nature of which remains unknown and represents a compelling target for follow-up work. This feature is further enhanced by the presence of three northeast-trending structural corridors that intersect the showing area, suggesting potential pathways for mineralizing fluids.

In addition, the Faribault shear zone, located approximately 450 metres southwest of the Laganiere showing, has been clearly defined through imagery and represents a regionally significant structural control that may be closely linked to mineralization.

All newly acquired airborne geophysical data, together with remote sensing interpretations, will be compiled into a GIS (geographic information service) platform to generate detailed 1:5,000-scale maps. These high-resolution outputs will be used to optimize fieldwork, logistics and final drill collar locations as the company moves toward initial drilling.

Description of the Lac Du Km 35 property regional setting

The Lac Du Km 35 property is located 40 kilometres east of Chibougamau in Quebec's Nord du Quebec region and benefits from excellent road access through Highway 167 and a network of forestry roads. The project covers volcanosedimentary rocks of the Roy group and the Laganiere gneissic complex, situated within the northeastern Abitibi greenstone belt near the Grenville Front, a major structural boundary.

The property comprises the prominent Faribault shear zone (FSZ), oriented east-southeast and located toward the eastern part of the property. The FSZ dips to the south-southwest and ends to the Grenville Front, which extends southwest-northeast for several hundreds of kilometres. The FSZ is a key structural feature that may connect with other permeable zones at depth, acting as a preferential conduit for hydrothermal fluids.

Discovered by government geologists in 1998 and never followed up, the Laganiere germanium showing consists of a peridotite outcrop within the Laganiere gneissic complex that comprises amphibolites and hornblende and biotite gneisses. The Laganiere showing returned a value of 0.02 per cent (186 ppm) germanium and is currently the highest germanium value ever reported from an outcrop in the province of Quebec.

The Laganiere germanium showing lies beside the main lumber road and immediately adjacent to the south to a cluster of electromagnetic anomalies of roughly 400 metres by 400 metres in size that were never tested. The Laganiere germanium showing is also 450 metres northeast of the FSZ, 800 metres from the southern margin of the Duberger felsic pluton and approximately two kilometres to the west of the Grenville Front. The area between the FSZ and the Laganiere germanium showing, including the never-tested cluster of electromagnetic anomalies, will be the main focus of Germanium Mining.

New airborne magnetic and electromagnetic survey

Magnetic and electromagnetic data are currently available from Quebec government sources, where a cluster of electromagnetic anomalies are present in the vicinity of the main Laganiere germanium showing. However, all these magnetic and electromagnetic data were acquired nearly 50 years ago in 1978. At the time, line spacing and elevation from the surface were respectively 200 and 120 metres.

The company intends to carry out a new, modern, detailed and more accurate airborne survey that will cover the whole Lac Du Km 35 property. It is expected that the survey will be flown as weather allows in April, 2026. For this airborne survey, line spacing not exceeding 75 metres and elevation from surface below 30 metres are planned.

These modern data will help to confirm existing anomalies and, possibly, outline new ones that will be verified on the ground in the coming summer field season.

About germanium

Germanium is a hard, greyish and brittle metalloid. Germanium has many growing applications in electronics and solar, fibre optics, and infrared optics for civil and military uses. Germanium is in the list of critical metals in Canada, the United States and the European Union.

Since Dec. 3, 2024, China, the largest producer of refined germanium, has banned germanium exports to the United States. Germanium is not an openly traded commodity and recent spot prices have germanium over $5,000 (U.S.) per kilogram.

The company cautions that the geological information provided in this news release is of historical nature and mineralization may not be representative of mineralization on the Lac Du Km 35 property.

Qualified person

Benoit Moreau, PEng, a qualified person as defined by National Instrument 43-101 and vice-president of exploration for Germanium Mining, has prepared and is responsible for the technical information contained in this news release.

About Germanium Mining Corp.

Germanium Mining is a publicly traded mineral exploration company focused on the exploration and advancement of discovery-stage mineral properties in top-tier mining jurisdictions across North America.

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