Global mining capital is increasingly moving toward brownfield projects and established operations rather than frontier exploration. Expanding an orebody near an existing concentrator is generally faster and less capital-intensive than developing a new mining district. High construction and financing costs are reinforcing this approach.
Mining merger and acquisition value increased by about 20% in 2025, as companies favoured defined copper and gold resources. BHP, Rio Tinto, Anglo American, Barrick and Newmont are concentrating on large, long-life assets in established mining regions.
Copper remains a leading exploration target
Copper is the strongest non-precious exploration market. Chile and Peru remain key producers, although declining grades, water constraints and regulatory complexity are increasing costs. BHP’s proposed $8.3 billion investment at Escondida is aimed mainly at replacing ageing facilities and sustaining production, illustrating the industry’s focus on maintaining existing output rather than creating entirely new supply.
Argentina is gaining attention for copper and lithium, supported by more investment-oriented policies. Its Andean projects include undeveloped porphyry systems, but high-altitude developments require power, roads and water infrastructure. Canada, Australia and the United States continue to attract strategic-mineral investment because government support can reduce financing risk. Projects generally need large scale, high grades, valuable by-products or government and industrial purchasing commitments to offset higher costs.
Africa combines mineral potential with development risks
The Central African Copperbelt remains important for copper and cobalt, while Namibia is significant for uranium and South Africa and Zimbabwe for platinum-group metals. Mozambique and Madagascar are important graphite jurisdictions, while several African countries hold rare-earth, lithium and titanium resources. South Africa’s Phalaborwa project uses a different development model. Rainbow Rare Earths plans to recover neodymium and dysprosium from historical phosphogypsum waste, supported by $50 million from the US International Development Finance Corporation.
West Africa remains highly prospective for gold and increasingly lithium. Governments are seeking greater ownership, higher royalties and domestic processing, although abrupt fiscal changes can increase financing costs and delay construction.
Lithium and nickel face tougher investment tests
Lithium exploration has contracted after the previous boom created numerous early-stage projects. Capital is now favouring low-cost brines, large hard-rock deposits and projects linked to chemical conversion. Direct lithium extraction is attracting interest in Argentina, Chile, the US and Europe, but commercial projects must demonstrate recovery rates, reagent consumption, water balance, impurity management and performance over thousands of operating cycles.
Nickel faces tougher economics because of Indonesia’s scale. New projects outside Indonesia need high-grade ore, low-carbon power, existing infrastructure or premium products for western battery and aerospace customers. Cobalt projects face similar pressure from the DRC’s geological advantage and the expansion of cobalt-free batteries. Projects producing cobalt as a copper or nickel by-product are therefore better positioned than standalone cobalt developments.
Gold, uranium and technology metals attract capital
Gold remains a major source of exploration capital. High prices support cash flow, acquisitions and the reassessment of lower-grade deposits, particularly around existing mills. Risks include cost inflation, political intervention and rising tailings-management costs.
Uranium exploration is strengthening as utilities return to long-term contracts. Kazakhstan retains low-cost in-situ recovery operations, while Canada offers exceptionally high-grade deposits. Namibia, Australia, the US, Mongolia and parts of Africa are also receiving renewed attention. Projects entering production before the early 2030s are particularly relevant as western conversion and enrichment capacity expands.
Tin and tungsten projects benefit from high prices and Chinese supply risks, with developments in South Korea, Australia, Spain and Portugal gaining strategic relevance. However, limited market size means production must be carefully managed.
Recovery technology expands the critical-minerals pipeline
Rare-earth projects face challenges in separation and magnet production, rather than simply resource availability. Viable developments require favourable mineralogy, low radioactive content, pilot-scale separation results and a route to neodymium-praseodymium metal or magnets. For gallium, germanium, indium and tellurium, exploration increasingly means testing bauxite, zinc and copper deposits, smelter residues, coal ash and historical tailings. Metallurgical recovery and purification technology are central to their development. Australia’s Alcoa Wagerup alumina refinery gallium recovery project, supported by Australia, Japan and the United States, demonstrates how existing industrial facilities can be adapted to recover technology materials from residues and intermediate streams.
Digital exploration tools including satellite imagery, hyperspectral surveys, artificial intelligence, automated core scanning and 3D geological models are improving target selection and resource modelling, although drilling remains necessary. Mining is also becoming more automated and electrified through autonomous haulage, ore sorting, sensor-based grade control and predictive maintenance. Renewable power and battery-electric underground equipment are being adopted, while remote mines still require reliable backup energy and transmission infrastructure. Project financing is increasingly supported by strategic offtake agreements, streaming, royalties, government loans and price floors, while early-stage developers increasingly require industrial partners to share commodity and construction risk.
