Europe’s critical minerals strategy is increasingly focused on the industrial infrastructure required to convert raw materials into usable metals, with smelters and refineries emerging as a key part of supply-chain security.
The continent’s mining debate has largely centred on securing new sources of lithium, graphite, rare earths and other strategic materials. The processing stage remains a major vulnerability, as smelters, refineries and metals-processing facilities transform concentrates, scrap and industrial residues into materials required for defence, batteries, electricity networks, construction, automotive manufacturing and electronics.
Trafigura has warned that Europe cannot afford further losses in its smelting sector as the European Union attempts to implement the Critical Raw Materials Act (CRMA). The legislation has introduced strategic project designations, supply-chain targets and faster permitting ambitions, but existing processing infrastructure is facing pressure from energy costs, carbon expenses, weak treatment charges and international competition.
Smelters Provide Access to Strategic By-Products
Base metals including zinc, copper, lead and aluminium remain central to European industry, supplying materials for vehicles, cables, substations, buildings, defence equipment, renewable energy systems and manufacturing infrastructure.
Their importance extends beyond primary metal production. Smelting and refining operations also recover smaller-volume metals from processing streams, including indium, germanium, antimony, tellurium, selenium, silver, lead and gold.
Many of these materials do not support standalone mining operations because they occur in low concentrations, but they can become strategically important when supply chains are concentrated, export controls increase or defence demand rises. Europe’s existing smelting base therefore represents more than legacy industrial capacity. Without domestic processing infrastructure, access to imported concentrates or mined resources does not guarantee supply security.
Nearly One-Third of Smelting Capacity Lost
Trafigura estimates that almost one-third of Europe’s base-metal smelting capacity has been closed or curtailed over the past decade.
The pressure on smelters is linked to structural cost disadvantages rather than short-term market conditions. Energy can represent up to 60% of production costs, leaving European operators exposed when electricity prices rise, grid charges differ between countries, indirect carbon costs are not consistently compensated and competitors receive state support. Because metal prices are determined in global markets, European smelters often cannot pass higher operating costs directly to customers.
The closure of a smelter also affects industrial capability beyond lost production. Equipment can deteriorate, skilled workers can leave, supplier networks can disappear and metallurgical expertise can move to other regions. Restarting facilities later can require significantly greater investment than maintaining operating capacity.
Processing Targets Depend on Existing Industrial Assets
The CRMA includes a target for the EU to meet 40% of annual strategic raw material needs through processing by 2030.
Processing capacity cannot be created quickly after mining projects receive approval. Smelting and refining infrastructure determines whether raw materials can become usable industrial products. European processing facilities are therefore closely linked to the bloc’s plans for mining, recycling and supply-chain diversification.
Zinc, Copper and Recycling Networks
Nyrstar’s European zinc operations illustrate the role of existing processing infrastructure. Its facilities in Balen, Pelt, Budel and Auby are located near industrial customers, ports and logistics networks. The company’s Auby site in France also has indium refining capability. Indium is used in transparent conductive coatings for displays, semiconductors, photovoltaic applications and other high-technology uses.
Trafigura has highlighted the possibility of expanding recovery of strategic by-products from existing European assets. Adding germanium recovery capability at Nyrstar-type facilities could require approximately €100 million per site, according to the company’s assessment.
Although the investment amount is limited compared with large mining developments, private investors still face uncertainty from volatile prices, uncertain offtake arrangements, policy risks and competition from state-supported producers.
Copper Processing Remains Central to Industrial Security
Copper processing represents another key part of Europe’s industrial base. Companies including Aurubis operate copper smelting, refining and recycling facilities in locations such as Hamburg, Lünen and Olen. Copper is required for electricity grids, renewable energy systems, data infrastructure, defence electrification and electric vehicles.
Europe’s future copper security depends not only on securing mine supply from regions including Latin America, Africa and the Balkans, but also on maintaining the ability to process concentrates, complex scrap and industrial residues into refined copper products within the European industrial system. Recycling also depends on metallurgical capacity. Scrap collection alone does not create circular supply chains. Materials must be sorted, sampled, processed, smelted, refined and certified before returning to industrial use.
Modernisation Projects Support Existing Capacity
The expansion of Boliden’s Odda zinc facility in Norway demonstrates the type of investment model involving existing European assets. The project increases zinc production capacity from approximately 200,000 tonnes per year to 350,000 tonnes per year, while improving resource efficiency and reducing the carbon intensity of production.
The focus is on upgrading existing infrastructure, increasing output, improving feedstock utilisation and supporting lower-carbon metal production. Other European industrial assets, including Boliden’s Nordic smelters, Aurubis’s copper and recycling operations, Nyrstar’s zinc and lead-processing network and Metlen’s alumina operations in Greece, form part of the continent’s broader metals-processing capacity.
Critical Metals Link Processing to Defence Supply Chains
The defence sector adds further importance to European smelting and refining infrastructure. Lead processing supports supply chains connected to ammunition production, while antimony-bearing materials, germanium and gallium contribute to semiconductor, infrared optics, fibre optics and advanced electronics applications.
Indium is used in displays, sensors and specialised coatings. These markets are smaller and less transparent than bulk metals markets, increasing the potential impact of supply disruptions or export restrictions.
Policy Support Focuses on Energy, Finance and Offtake
The European processing sector requires support mechanisms focused on competitiveness, according to Trafigura’s assessment. Potential measures include long-term electricity access at competitive prices, harmonised compensation for indirect emissions costs, capacity payments or flexibility revenues for industrial electricity users, and procurement mechanisms that support strategic European supply.
Additional tools could include public-backed offtake agreements and price-protection mechanisms for minor metals where market liquidity is limited. The policy challenge is balancing industrial support with market discipline. Strategic support would need to be linked to measurable outcomes, including by-product recovery, emissions reductions, recycling capacity, defence-related supply contracts, grid flexibility, workforce retention and long-term asset availability.
Energy Costs Remain a Major Industrial Constraint
Electricity policy is a central issue for energy-intensive metals production. Smelters require large amounts of power, but they can also provide flexibility to electricity systems by adjusting operations around renewable generation, participating in demand response and supporting grid balancing.
This requires market structures that recognise industrial flexibility rather than exposing large consumers only to volatile tariffs and uneven network costs.
European Supply Chains Require Strategic Procurement
Long-term purchasing agreements could support investment in European smelting, refining and recycling infrastructure. Automotive companies, defence manufacturers, battery producers, electronics companies, cable manufacturers and grid-equipment suppliers may need to adopt more strategic procurement approaches instead of relying only on spot-market purchasing.
Public institutions could also support demand security through defence procurement, strategic reserves and public-backed purchase agreements.
Southeast Europe Included in Processing Discussions
Southeast Europe remains connected to Europe’s broader industrial and mineral supply chains through mining, metallurgy, energy infrastructure and transport corridors. Countries including Serbia, Montenegro, Bosnia and Herzegovina, North Macedonia, Bulgaria, Romania and Greece are linked to regional mining activity, power generation, metallurgical operations and potential recycling development. The region’s role depends on whether European policy integrates neighbouring economies into future mineral-processing networks or leaves them primarily as suppliers of raw materials and energy.
Strategic Value of Existing Smelters
For investors, existing smelters provide strategic value beyond current operating margins. Their importance increases during supply disruptions involving export controls, defence demand, infrastructure expansion, shipping disruptions, sanctions or shortages of minor metals.
Not every facility can be maintained indefinitely, and some assets may face challenges related to age, emissions performance or location. However, selective modernisation of facilities capable of recovering strategic metals, processing recycled materials and supporting industrial supply chains remains a key consideration.
New mines and new smelters require long development timelines, major capital investment, specialist labour, environmental approvals and commissioning periods. Existing facilities already have infrastructure, permits, workforce capabilities, logistics connections and metallurgical expertise. Europe’s critical minerals strategy depends not only on securing mineral resources but also on maintaining the industrial capacity required to process them into usable metals.
