51 DECEMBER 2025 WorldWide Drilling Resource® Drill Records from 1930s Aid in Exploration Adapted from Information by GreenX Metals Limited GreenX Metals Limited revealed the discovery of 95 historical drillhole records pertaining to the Tannenberg Copper Project, in Germany, sourced from archival materials dating back to the 1930s. These drillholes are particularly noteworthy as they laid the groundwork for the establishment of three copper mines - Reichenberg, Wolfsberg, and Schnepfenbusch - during that era. The mines were initiated by the National Socialist government in the late 1930s to ensure a domestic copper supply for World War II efforts. It’s important to note that these 95 historical logs are distinct from the 47 more recent historical cores (typically drilled after 1970) the company is currently relogging and sampling. The drilling campaign conducted between 1935 and 1938 explored two main concepts. The southern drillholes examined the downdip extension of known Kupferschiefer mining locations from the mid-1800s, ultimately leading to the development of the Wolfsberg and Schnepfenbusch mines. Meanwhile, drilling in the northern region uncovered previously unexploited, downfaulted Kupferschiefer that does not surface, which resulted in the opening of the Reichenberg mine. Collectively, these three mines comprise the Richelsdorf Mining District and fall within the Tannenberg exploration licenses. Recently, GreenX Metals located some original records of these drillholes in a regional archive. So far, they have identified logs of 43 out of 95 holes listed in the 1930s data, with historical assay results available for 35 of them. The archives remain nondigitized, necessitating a meticulous manual review of the database and scanning of pertinent documents. The company is committed to continuing its search for additional data within the archives. Modern drilling of up to 95 holes is estimated to exceed $29 million and could take several years due to current permitting processes. The identification of this historical drill data not only represents a substantial reduction in both time and costs for GreenX Metals, it also furnishes critical data points enhancing the effectiveness of their current exploration initiatives, including targeting and 3D modeling. When combined with the recent relogging and sampling of the 47 modern drill cores, the growing repository of exploration data at Tannenberg emphasizes its potential as a significant brownfield exploration opportunity. The unearthing of the National Socialist era drill database is part of the company’s ongoing efforts to locate historical mining and production information within Germany archives, contributing to a comprehensive exploration program at Tannenberg. This program includes: j Logging, assaying, and hyperspectral scanning of historical cores. j Reprocessing and analyzing historical geophysical data. j Compiling historic geological, mine development, and production records. EXB
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