• High-grade copper intercepts confirmed with up to 2.7% copper and 55 g/t silver
• Mineralisation thicker than 1940 historical estimate, up to 3.7 m wide
• First modern assays in over 40 years validate historical work and demonstrate resource upside

GreenX Metals Ltd has announced the first batch of assay results from its historical core logging and sampling program at the Tannenberg Copper Project in Germany. The results further validate historical exploration data from the 1980s and confirm that mineralisation widths are thicker than those used in the 1940 Historical Estimate. The modern assays from six (of 47) archived drill cores confirm historical grades with intercepts of 1.0-3.7 m at 0.7-2.7% copper and 10-55 g/t silver. These results demonstrate that the mineralisation extends beyond the narrow Kupferschiefer shale horizon, consistent with KGHM's Polish operations located on the same basement architecture. The core program involves re-logging, re-assaying, hyperspectral scanning and the collection of petrophysical measurements for historical core from 47 drillholes completed in the 1980s. The results are an important first step in applying modern techniques to validate and build on the historical exploration as GreenX begins to fully define the Project's scale and importance. With the majority of the core program still ahead, and the potential for new discoveries in 18 previously unassayed holes, GreenX is building a compelling case for a significant copper resource in one of Europe's most accessible mining districts.

GreenX is continuing its core logging and sampling program, with results reporting to continue through to Q1 2026. The company intends to acquire 90% of the fully diluted share capital of Group 11 Exploration GmbH, which holds the Tannenberg exploration licences, by 31 December 2025.

GreenX is undertaking a broader exploration program at Tannenberg, including logging, assaying, and hyperspectral scanning of remaining historical core, reprocessing and analysis of historical geophysical data, and collation and digitisation of historical geological, mine development, and production data. The company also plans to conduct twin drilling to verify historical estimates and establish a mineral resource estimate in accordance with the JORC Code.