Europe’s Critical Minerals Push: €100 Billion in Refining and Battery Materials Investment Targets Supply Security by 2035

Europe’s industrial transformation is moving from policy intent to large-scale construction, as investment in critical minerals processing, solvent extraction and hydrometallurgical technologies starts to reshape the continent’s economic trajectory. The push is tied to decarbonisation and electrification goals, but also to rising geopolitical uncertainty—factors that are driving the EU to pursue a more resilient and strategically autonomous supply chain for essential materials.

A wave of new plants, from solvent extraction to hydrometallurgy

Analysts estimate Europe will need at least 10–15 new solvent extraction and hydrometallurgical facilities. Each project is expected to require between €150 million and €1 billion, underscoring both the scale of the buildout and the financing challenge. These plants are only one part of a broader ecosystem taking shape across refining, processing and advanced materials production—an infrastructure base intended to support Europe’s future industrial competitiveness.

Lithium refining and battery materials become central

Lithium refining sits at the front of the battery supply chain. As demand rises for battery-grade lithium hydroxide and carbonate, Europe is working to localize production. Large-scale lithium refineries are estimated to cost between €500 million and €1.5 billion depending on capacity and feedstock.

By 2035, Europe is expected to need 8 to 12 major lithium conversion plants to support an expanding gigafactory network across Germany, France, Hungary and the Nordic region. Alongside conversion capacity, precursor and cathode active material (CAM) facilities are also gaining importance. Plants producing nickel-manganese-cobalt (NMC) and lithium-iron-phosphate (LFP) materials typically require €300 million to €1 billion in capital investment.

These steps are positioned as necessary building blocks for a battery production ecosystem projected to exceed 1 terawatt-hour annually by 2035.

Nickel, cobalt and copper refining expands with electrification

Europe’s electrification strategy depends not only on batteries but also on expanded refining capacity for nickel, cobalt and copper. The metals are described as indispensable for energy storage, electric mobility and renewable infrastructure. Modern refining facilities—often using hydrometallurgical processes such as high-pressure acid leaching (HPAL) and solvent extraction—are estimated at €400 million to €2 billion per project.

Finland, Poland and parts of Central Europe are highlighted as emerging hubs for this expansion. Copper remains a key focus because it is used extensively in power grids, wind turbines and electric vehicles; demand is expected to surge as the energy transition accelerates. New smelting and refining projects typically require €500 million to €1.5 billion, while recycling facilities are presented as lower-cost options with lower carbon intensity.

Rare earths and magnets move up the strategic priority list

Europe’s drive for technological sovereignty is also pushing investment into rare earth separation and magnet manufacturing. These inputs are described as essential for wind turbines, electric motors and defense technologies.

Rare earth processing facilities are estimated at €200 million to €800 million, while downstream magnet plants typically need €100 million to €500 million. Building a full value chain—from rare earth oxides through finished magnets—is seen as critical for reducing dependence on external suppliers. As offshore wind capacity and electric mobility scale up, demand for high-performance magnets is expected to rise sharply.

Circular economy investments target secondary aluminium materials

The transition toward a circular economy is accelerating investment in secondary metals processing. Facilities focused on recycling-related activities—including recycling operations referenced in the source text alongside alumina refining and red mud valorisation—are gaining traction in regions with strong industrial legacies.

These projects typically require €200 million to €800 million while offering dual benefits: recovering valuable materials such as aluminium, iron, titanium and scandium, alongside addressing environmental challenges. The source frames these investments as attracting both public funding and private capital by pairing resource recovery with sustainability objectives.

Graphite, silicon and advanced materials broaden the battery supply chain

Beyond lithium conversion, Europe’s battery-driven clean technology expansion is increasing demand for graphite processing and silicon refining. Battery-grade graphite plants are estimated at €200 million to €600 million. Silicon facilities—critical not only for semiconductors but also solar panels—often require more than €500 million in capital expenditure.

The source also points to growth in specialty chemicals and advanced materials production that supports broader clean technology supply chains through components such as electrolytes, binders and solvents.

Hydrogen-based metallurgy supports green steel decarbonisation

Decarbonising heavy industry adds another layer of investment pressure—and opportunity—to Europe’s industrial agenda. The source highlights growing investments in hydrogen-based metallurgical processes including direct reduced iron (DRI) and green steel production. These large-scale projects often exceed €1 billion to €3 billion, aligning with Europe’s climate neutrality targets while creating potential pathways for public-private partnerships using blended finance models.

Financing mix: public instruments plus private capital

The total funding requirement described in the source is substantial: by 2035, total capital needs across Europe’s refining and processing sectors are expected to exceed €100 billion.

The financing mix includes European Investment Bank (EIB) financing; European Bank for Reconstruction and Development (EBRD) support; EU Innovation Fund and Horizon Europe grants; the Critical Raw Materials Act (CRMA); the Net-Zero Industry Act; Important Projects of Common European Interest (IPCEI); InvestEU; the Just Transition Fund; national subsidies;and export credit agencies.

This public support is complemented by private capital from sovereign wealth funds, pension funds, investors referenced in the source text via placeholders,and private equity firms—each increasingly viewing critical minerals processing as a strategic asset class.

Returns depend on value-chain integration

The broader ecosystem—including recycling operations, magnet production activities, engineering services,and specialty chemicals—is expected to generate tens of billions of euros in economic value. Typical internal rates of return cited range from 12% to 20%, with higher returns expected in areas such as battery materials,recycling,and advanced processing.

The source argues that projects integrating multiple stages of the value chain—from raw material recovery through finished products—can offer greater resilience and profitability. It also notes that long-term offtake agreements with automotive, energy,and defense sectors can improve financial stability.

A comprehensive buildout aimed at control over inputs by 2035

By 2035,the source projects a comprehensive network of refiningand processing facilities spanning lithium,nickel,copper,rare earth elements,and graphite alongside aluminium production,and hydrogen-based metallurgy. The stated purpose is twofold: underpinning Europe’s transition toward a low-carbon economy while strengthening supply chain securityand technological leadership.

As policy frameworks evolve,captial flows mobilize,and technology advances converge,the critical minerals sector described here is emerging as one of the most dynamic—and strategically important—investment landscapes of the 21st century. In short,the message from the source is clear: Europe is no longer only consuming resources—it is building an industrial system intended to control them.