Molybdenum and the geopolitics of substitution: project economics lens for mine planners
Reviewed by Tom Sullivan
First reported on MINING.com
30 Second Briefing
Molybdenum’s price surge to about $65,500/t in May 2026, nearly $30/lb and up 48.9% year-on-year, signals a shift from simple by-product tightness to a security premium on alloying metals as China’s February 2025 export controls on tungsten, tellurium, bismuth, indium and molybdenum inject licensing risk into defence, aerospace and tooling supply chains. Partial substitution away from tungsten via molybdenum carbides, Mo-bearing steels and superalloys is driving small absolute but material demand gains in a roughly 300,000 t/y market, where supply is constrained by copper mine plans. Chile and Peru already export about US$2.48 billion and US$1.65 billion of molybdenum respectively, with higher prices materially improving copper by-product credits and project economics.
Technical Brief
- Metallurgical response centres on reducing tungsten intensity, re-optimising alloys and qualifying alternative carbides under supply stress.
- Molybdenum carbide is being deployed as a partial functional substitute for cemented tungsten carbides in selected tooling.
- Mo-bearing steels and superalloys are tuned for improved hardenability, creep resistance, high-temperature strength and corrosion performance.
- Substitution is treated as a spectrum of partial replacement and functional complementarity, not one-for-one metal swaps.
- Supply in porphyry copper systems is constrained by copper mine plans, ore grades, recovery circuits and by-product plant capacity.
Our Take
Plusmining also appears in recent coverage analysing how copper price assumptions in mining studies have risen since 2020, which suggests its current commentary on molybdenum and substitution is likely being framed against more expensive copper project pipelines in Latin America.
With Chile and Peru together exporting over US$4 billion of molybdenum and molybdenum ore, any sustained substitution away from molybdenum in steel or alloy applications would have a disproportionate impact on Andean copper–moly by-product economics compared with primary producers elsewhere.
South32’s roughly US$2 billion zinc–manganese project in Arizona underlines how alloying alternatives to molybdenum (such as manganese and vanadium) are attracting large-scale capital, which could, over time, cap molybdenum’s pricing power even after a near-50% year-on-year price rise.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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