India is building a strategic stockpile of critical minerals to protect industries from global supply disruptions. While reserves help, the government also approved a ₹7,280-crore scheme to manufacture rare-earth magnets. Officials said, "access to raw materials does not guarantee access to the industrial inputs that manufacturers actually require."
India must not only secure the materials its industries need but also the ability to turn those materials into products
What happens when a country has the raw materials its industries need but cannot turn them into the components its factories use? India's proposed strategic stockpile of critical minerals brings this question into focus. The government is preparing a policy to build reserves of minerals needed for electric vehicles, batteries, defence equipment, electronics and energy infrastructure, with the aim of reducing exposure to global supply disruptions.
The logic is sound. A reserve can protect manufacturers when supplies are interrupted. But there is a limit to what stockpiling can achieve. A country can secure the ingredients of industrial production without securing the ability to manufacture the finished product.
Consider rare-earth permanent magnets. These compact components are essential to electric motors, wind turbines, electronics and several defence applications. Their value does not lie simply in the presence of rare-earth elements. It depends on composition, processing and the properties of the finished material. Between extracting a mineral and producing a magnet lies a chain of industrial capabilities that cannot be created by filling a warehouse.
This is where India's mineral-security debate needs to move beyond the quantity of resources it can acquire.
Rare-earth scheme
India has already approved a ₹7,280-crore scheme to establish 6,000 tonnes a year of integrated rare-earth permanent-magnet manufacturing capacity. The initiative is intended to build a domestic production chain, from rare-earth oxides to finished magnets. It recognises a problem that stockpiling alone cannot solve: access to raw materials does not guarantee access to the industrial inputs that manufacturers actually require.
The distinction is economic, not merely technical. A shortage of a relatively small component can disrupt production across an entire industry. An electric-vehicle manufacturer, for instance, may have access to capital, assembly facilities and customers but still be unable to deliver vehicles if a critical component becomes unavailable. The financial consequences can extend beyond the price of that component to idle capacity, delayed deliveries and lost revenue.
This is why the composition of India's proposed stockpile matters as much as its size. Minerals are not interchangeable units of inventory. Industries require particular grades, chemical forms and processed materials. A reserve of raw material may offer limited immediate protection if the bottleneck lies further down the supply chain.
The government should therefore distinguish between three objectives: securing mineral supplies, building domestic processing capacity and ensuring access to finished industrial inputs. These objectives overlap, but they are not identical. Each requires a different mix of investment, infrastructure, technology and commercial partnerships.
Physics offers a useful way to understand the problem. The properties of a material depend not only on what elements it contains but also on how those elements are arranged and processed. The same principle applies to industrial production: possession of the right ingredients does not automatically confer the ability to make a useful product.
This has consequences for public spending. A strategic reserve ties up capital in commodities that must be purchased, stored and eventually replenished. Prices can change substantially during the period between procurement and use. If the reserve is poorly matched to manufacturers' needs, the government could spend money accumulating material without removing the constraint that threatens production.
A stockpile also buys time, rather than independence. It can help firms withstand a temporary export restriction or geopolitical disruption while alternative supplies are arranged. But if domestic processors, specialised equipment or manufacturing expertise are unavailable, that time may not be enough to restore production.
Use of reserves
India's policy should make clear how the reserves will be used. Which industries will qualify for access during a shortage? How will the government determine the quantities released? Will the reserve contain raw minerals, processed materials or both? And how will officials assess whether the stockpile can sustain production for the period promised?
These questions matter because the value of a reserve depends on the disruption it can absorb, not simply the tonnes it contains. The government must also avoid creating a system in which public procurement competes with private manufacturers for scarce supplies and pushes up input costs without delivering a corresponding improvement in security.
Domestic processing and recycling can reduce some of these vulnerabilities, but neither is an instant solution. Processing facilities require investment, reliable supplies, technology and commercially viable demand. Recycling can recover materials from discarded products, but its contribution depends on the quantity and composition of waste available for recovery. Import diversification will remain necessary for minerals that cannot be produced economically in India.
The objective should not be to manufacture everything at home. That would be expensive and, in some cases, impractical. Strategic autonomy means being able to withstand a supply shock without losing control of essential economic activity. It requires identifying which dependencies can be tolerated, which need alternatives and which could bring production to a halt.
India's proposed stockpile is an opportunity to make that distinction explicit. Its success should be measured not by the size of the reserve announced, but by the extent to which it protects industrial output and supports the development of domestic capabilities.
When a supply disruption arrives, the test will be straightforward. Can Indian manufacturers continue producing, or do they still depend on an overseas supplier for the processing that makes a mineral useful?
India must secure the materials its industries need. But it must also secure the ability to turn those materials into products. Otherwise, the country may possess the ingredients of industrial power while remaining dependent on others to put them to work.
The writer is a physicist at the University of North Carolina at Chapel Hill, US, and Contributing opinion writer at the Wall Street Journal