Critical Minerals Supply Chain: From Mine to Manufacturer
The journey of a critical mineral from its geological deposit to a finished product spans continents, crosses dozens of corporate and national boundaries, and involves some of the most technically demanding industrial processes on Earth. Understanding each stage of this value chain is essential for identifying vulnerabilities, investment opportunities, and policy leverage points.
The critical minerals supply chain is among the most complex and geopolitically sensitive value chains in the global economy. Unlike commodities such as oil or wheat, which follow relatively straightforward extraction-to-consumption pathways, critical minerals pass through multiple technically specialized stages, each of which may be dominated by a different country or small group of companies. A single kilogram of battery-grade lithium hydroxide, for instance, may originate from a brine deposit in Chile, undergo concentration in a local facility, be shipped to China for chemical conversion, and ultimately arrive at a cathode plant in South Korea before reaching an electric vehicle assembly line in Germany.
This geographic and industrial fragmentation creates a web of dependencies that governments and companies are only now beginning to map comprehensively. The COVID-19 pandemic, the Russia-Ukraine conflict, and China's 2023 export controls on gallium and germanium each exposed how disruptions at a single node can cascade through the entire chain. As nations pursue ambitious clean energy targets, secure and resilient supply chains for critical minerals have become a matter of national economic security.
The pages in this section provide a detailed, stage-by-stage guide to the critical minerals value chain. From initial exploration and geological surveys through mining, beneficiation, refining, chemical processing, and manufacturing, each page examines the technologies involved, the dominant players, the environmental and social considerations, and the strategic chokepoints that define the modern critical minerals landscape.
Upstream: Discovery and Extraction
The supply chain begins underground. These pages cover how critical mineral deposits are found, evaluated, and brought to the surface.
Exploration and Resources
How geologists discover critical mineral deposits using remote sensing, geochemical surveys, and drilling programs, and how resources are classified under international reporting codes.
Mining
Open-pit, underground, in-situ recovery, and artisanal mining methods for critical minerals, including environmental considerations and permitting challenges.
Midstream: Processing and Refining
Raw ore must be concentrated, refined, separated, and chemically converted before it can enter manufacturing. These stages represent the most geographically concentrated and strategically vulnerable links in the chain.
Beneficiation and Concentration
Crushing, grinding, flotation, magnetic separation, and gravity concentration techniques that upgrade raw ore into mineral concentrates for downstream processing.
Refining and Metallurgy
Pyrometallurgical, hydrometallurgical, and electrometallurgical processes that transform mineral concentrates into refined metals, and why China dominates this stage.
Rare Earth Separation
The uniquely challenging process of separating individual rare earth elements from mixed concentrates using solvent extraction and ion exchange chromatography.
Chemical Processing
Chemical conversion pathways that produce battery-grade materials, high-purity compounds, and specialty chemicals from refined metals and intermediates.
Downstream: Manufacturing and Delivery
Processed materials must reach manufacturers efficiently and transparently. These pages examine the bottlenecks, logistics, and governance systems that shape the final stages of the supply chain.
Manufacturing Chokepoints
Identify the key manufacturing bottlenecks where geographic concentration and capacity constraints create systemic risks for industries dependent on critical minerals.
Byproducts and Co-Products
Understand why many critical minerals are produced only as byproducts of base metal mining, creating unique supply constraints that defy conventional market signals.
Logistics and Shipping
Explore the transport infrastructure, shipping routes, port facilities, and trade corridors that move critical minerals across global supply chains.
Traceability and Certification
Learn about supply chain transparency initiatives, ESG certification schemes, and digital traceability systems reshaping responsible mineral sourcing.