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Goldgroup Mining Inc.

For the period ended Sep 11, 2026. Filed Sep 11, 2026.

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What a company based outside the US has published at home or sent to its shareholders. It is how many foreign companies share results and news between annual reports.

Sep 11, 2026 · Filed Sep 11, 2026

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EX-99.1 · Purpose of the Drilling Program

Purpose of the Drilling Program

The 26,000-metre core drilling program represents a significant investment in San Francisco and is designed to advance the project from an existing resource (with production history) and toward a potential restart of operations, while establishing a stronger geological foundation for future resource growth.

The program has three principal objectives:

●Resource definition and geological confidence – better defining the geometry, grade distribution and continuity of known mineralization, particularly along strike and at depth;
●Mine planning and technical studies – collecting geological, structural and geotechnical information required to support pit design, future pushbacks and evaluation of potential restart scenarios; and
●Resource expansion – testing extensions of known mineralization and identifying additional mineralized structures that could ultimately expand the mineralized footprint.

The drilling program is also providing important rock-quality, structural and geotechnical information. This data will be used to refine the interpretation of structural controls on mineralization and update the geotechnical characterization of the San Francisco and La Chicharra pits.

Mineralization identified closer to surface is particularly relevant to potential near-term mining scenarios, while deeper and along-strike intercepts will help evaluate the potential extent of mineralization beyond areas incorporated into current mine planning.

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