European Lithium Ltd has released an update on its Tanbreez Project in southern Greenland, providing an addendum to the existing mineral resource estimate. The company, which previously announced a 45‐megatonne (MT) resource estimate for rare earth elements (REEs) contained in eudialyte, now reports additional mineral resources totaling 180MT of feldspar and arfvedsonite. The project is hosted within the layered kakortokite unit, which covers roughly 5km by 2.5km and extends up to 270 meters in thickness. Detailed geological, metallurgical, and drilling data confirm that the kakortokite unit contains not only high-grade eudialyte, the main REE-bearing mineral, but also significant industrial minerals that could enhance the economic viability of the project by reducing waste. The update, prepared with established estimation methods and supported by extensive drilling campaigns dating from 2007 to 2013, outlines both indicated and inferred resources for the two mineral components. For the REE component, the combined indicated plus inferred resource is estimated at nearly 45MT with an average total rare earth oxide (TREO) grade of about 0.38%, and with zirconium and niobium oxide contents specified. Meanwhile, the newly quantified industrial minerals are split evenly between feldspar and arfvedsonite, each with indicated and inferred resource estimates that total 180MT when combined. The report emphasizes that the processing characteristics, including magnetic separation processes that benefit from the distinct magnetic properties of the minerals, have been successfully tested and confirmed. Technical indicators detailed in the addendum include quantitative X-ray diffraction (QXRD) analysis, QEMSCAN mineral liberation analysis, mass balance calculations, and risk assessments relating to the depletion levels of uranium and thorium, which remain at background levels. The drilling coverage—nearly 181 drill holes over a total of 6,392.3 meters for both the Fjord and Hill areas—provides high confidence in the resource estimation process. The company reiterated that the production targets, originally announced earlier this month, are expected to remain unchanged when the clarified scoping study is released. Market sentiment on this update appears mixed. On the bullish side, the additional 180MT resource augments the overall project potential, reflecting a methodical approach to resource delineation. The incorporation of industrial minerals into the resource base could add multiple revenue streams and improve project economics, particularly since the project offers low levels of radioactive elements—a rarity that makes the deposit more appealing from both an environmental and regulatory standpoint. On the bearish side, investors may remain cautious due to the inherent uncertainties associated with the kakortokite host rock, which does not guarantee that all mineralized zones will be economically viable once scaled up to mine planning. Moreover, the forward-looking production targets depend on the outcomes from further in-fill drilling and the forthcoming detailed scoping study, leaving some degree of execution risk over the longer horizon. Overall, the release underlines European Lithium Ltd’s commitment to advancing the Tanbreez Project toward a world-class REE development, while also hinting at the technical and economic challenges that lie ahead.