The clean-energy transition has a materials problem hiding under the hood. Wind turbines, batteries, electric vehicles, transmission lines, data centers, and semiconductors all require minerals that are mined, processed, traded, and sometimes restricted across borders. UNCTAD’s latest update makes the scale clear: lithium demand is projected to rise 353% between 2024 and 2040, while graphite demand is projected to rise 131%. If energy is becoming electrified, the supply chain is becoming mineralized.
The risk is not only scarcity. It is concentration. UNCTAD reports that in 2025 the Democratic Republic of the Congo accounted for 74% of cobalt mine production, Indonesia for 67% of nickel mine production, and China for 69% of rare earth mine production. That concentration gives a small number of countries major influence over the inputs required for a much larger set of technologies. It also means that a trade dispute, export restriction, permitting delay, or processing bottleneck can ripple through battery prices, EV deployment, grid upgrades, and industrial competitiveness.
This is why critical minerals are becoming a boardroom topic, not just a geology topic. Since 2020, nearly 100 export measures have been introduced on critical energy transition minerals, according to UNCTAD. Governments are trying to secure supply, companies are rethinking procurement, and investors are learning that a battery factory is only as resilient as its upstream material chain. The world spent years asking who would build clean-energy demand. Now the sharper question is who controls the inputs.
The educational takeaway for Energy Brew readers is simple: clean energy is not weightless. It has mines, ports, refineries, shipping lanes, recycling plants, and policy risk. The winners in the transition may not only be the companies selling shiny finished products. They may be the countries and firms that master the unglamorous middle of the supply chain. In energy, the future often belongs to whoever controls the boring bottleneck. That is why procurement teams, trade lawyers, recycling companies, and mineral processors deserve a place in the energy conversation beside developers and utilities. The transition will be built with electrons, but it will be negotiated through materials.
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