UK-based junior miner First Tin (LSE: 1SN) has confirmed the widespread presence of gallium and indium, among other critical raw materials, over its Auersberg and Gottesberg licences in Germany.
The company compiled sampling results from exploration conducted during 2024 and 2025 and historical German Democratic Republic data, confirming the presence of multiple critical raw materials in addition to tin. On top of gallium and indium, the company found elevated levels of lithium, caesium, and rubidium.
The company said the discoveries enhance the strategic importance of the project within the EU, which lists gallium and lithium as critical raw materials.
Several tin greisen vein structures were mapped and sampled over a distance of at least 3 km. First Tin said the results suggested potential for “sizeable systems in the district with grades of between 0.2% and 0.6% Sn plus critical raw material by-products”.
The company also located silver and bismuth in several of the tin greisen systems.
First Tin CEO Bill Scotting commented: “The results show that there is further potential for significant tin deposits in our portfolio of exploration licences in the tin triangle around the known Tellerhauser and Gottesberg deposits”.
“In addition, the considerable potential for other critically important minerals is especially relevant as Europe seeks to build security in its critical minerals supply chain.”
The company is planning further work to evaluate these additional minerals in their 2025 fieldwork programme.
Our view: The discovery of critical minerals on First Tin’s German licences is promising given the EU’s commitment to supporting various strategic projects. We look forward to seeing further data from First Tin.
