Europe is closely monitoring developments in Portugal as private companies carry out preliminary studies to assess the presence of critical minerals beneath the country’s surface. The growing interest is driven by the need to secure supplies of rare earths and other strategic elements essential for modern technologies, amid efforts by the European Union to reduce its dependence on China.
Brussels has already fast-tracked several extractive projects linked to critical raw materials, and new geological data suggest that Portugal’s resource potential may be broader than previously assumed. According to Luís Martins, a geologist at Portugal’s National Laboratory for Energy and Geology (LNEC), the country is on the verge of a new mining-driven transformation. He noted that Portugal has strong expertise in mining and environmental management compared with many other European states.
Exploration activities, including test drilling, are currently underway in parts of the Alentejo and the Northwest Transmontano regions, such as Moncorvo, an area with a long mining history. Martins stressed, however, that commercial extraction remains a distant prospect, explaining that rare earth elements are often associated with iron deposits, as seen in Moncorvo.
In the Alentejo, areas including Monforte-Tinoca, Assumar, Crato-Arronches, and Penedo Gordo have already revealed the presence of highly sought-after elements. These include zircon, hafnium, titanium, niobium, tantalum, yttrium, and scandium. While not all of these minerals fall strictly within the rare earth category, many are classified as strategic or critical, heightening EU interest.
Martins explained that rare earth elements comprise 17 chemical elements, including the 15 lanthanides as well as scandium and yttrium, which share similar chemical properties and often occur in the same deposits. These materials are vital for a wide range of industrial and technological applications due to characteristics such as magnetism, luminescence, and electrical resistance.
The prospect of expanded mining activity raises concerns about environmental impacts, landscapes, and traditional rural livelihoods. Resistance has already been seen in northern Portugal, where communities have opposed lithium mining projects. Despite this, Martins believes economic considerations are likely to prevail. He pointed to two major untapped gold deposits in Montemor and Jales/Gralheira, which together could yield up to one million ounces of gold, currently valued at approximately 3.6 billion euros.
