One of world's largest lithium deposits found in Germany's Altmark

Neptune Energy has confirmed the discovery of one of the world’s largest lithium deposits in Germany’s Altmark region, with an estimated 43 million tons of lithium carbonate equivalent (LCE). Located in Northern Saxony-Anhalt, an area historically known for natural gas production, this lithium resource was validated by the independent agency Sproule ERCE under international standards. The Altmark basin’s Rotliegend brines are highly mineralized and lithium-rich, positioning the region as a significant future supplier of this critical raw material for batteries and electric vehicles (EVs). This discovery could notably enhance Europe’s role in the global EV and battery supply chain. In response to the growing demand for sustainable battery materials, Neptune Energy is shifting from fossil fuels to clean lithium extraction using direct lithium extraction (DLE) technology. This environmentally friendly method isolates lithium from underground brine with minimal land use and impact, avoiding traditional open-pit mining or evaporation ponds. Neptune has already completed two successful pilot projects and is conducting a