Portugal's Barroso lithium deposit has announced a 40% jump in reserves, solidifying its status as Europe's largest with 39 million tons.

The Barroso lithium project in Portugal, owned by London-listed Savannah Resources, has recently garnered global attention with its latest exploration data. The confirmed spodumene reserves have reached 39 million tons, representing a 40% increase from the previous benchmark of 28 million tons.

Even more groundbreaking is that with the ongoing Phase II drilling program, the project's estimated additional reserves range from 35 to 62 million tons—a surge of 200% compared to the initially proven scale. At this pace, the total reserves are expected to challenge the 100 million-ton mark within two years.

The expansion of this "white oil" giant is injecting a strong stimulus into Europe's new energy industry. With the capacity to supply batteries for 500,000 electric vehicles annually, its total resources can meet the battery demands of 47 million new energy vehicles. This not only solidifies its position as Europe's largest spodumene deposit but also serves as a core pillar for the implementation of the EU's Critical Raw Materials Act. The Act mandates that 10% of the EU's lithium supply must be sourced domestically by 2030, and the steady output from the Barroso project will significantly reduce the bloc's reliance on external resources.

Leveraging Portugal's abundant renewable energy supply and a logistical advantage of being just 145 kilometers from the deep-water port of Leixões, the project will also achieve dual value through low-carbon mining and efficient transportation. Furthermore, by-products such as feldspar and quartz, generated from the annual mining of 1.5 million tons of ore, will create additional revenue streams.

The project has now entered a critical advancement phase. Following the Portuguese government's lifting of the temporary suspension order, field investigation and drilling operations are set to resume in 2025, with the final feasibility study scheduled for completion in the second half of the year. The target for commercial production is set for 2027.

Notably, the project is currently in a crucial financing stage. As Europe's largest conventional hard-rock lithium development, it has been included in the EU's list of 47 Strategic Raw Materials Projects, qualifying for streamlined approval processes — mining project approvals have been compressed to 27 months. The EU, in collaboration with institutions like the European Investment Bank, is also providing financial support.

Savannah Resources holds 100% ownership of the project, with a mining lease valid until 2036 and extendable for an additional 20 years, laying a solid foundation for long-term development.

However, development challenges remain significant. A notable 24% of the mining area is privately owned, with some landowners refusing to sell. Environmental groups continue to protest, arguing that open-pit mining would damage the agricultural cultural heritage, and have even sought preliminary injunctions through legal action.

More critically, the UN Aarhus Convention Compliance Committee recently ruled that the Portuguese Environment Agency violated international treaty obligations by blocking public access to key information during the project's approval process. Environmental organizations are now calling for the environmental license to be revoked.

In response, Savannah Resources has stated it will advance land consolidation through negotiated acquisitions and administrative coordination. Meanwhile, the EU's strategic positioning of lithium as a critical resource continues to provide core policy support for the project.

Against the backdrop of rising global tariff barriers on critical minerals, the reserve breakthrough and development progress of the Barroso lithium project are profoundly influencing the layout logic of Europe's battery industry chain. Its ultimate implementation may potentially reshape the global lithium supply landscape.