When Prime Minister Narendra Modi spoke in Secunderabad recently about India’s need to conserve foreign exchange, he made a special mention of copper — a metal the country once produced in abundance.
The remark did not receive as much attention as his warning against purchasing gold for a year or avoiding foreign trips.
What may have sounded technical to many touched upon something much larger than economics.
In a world increasingly shaped by wars, disrupted trade routes and fragile supply chains, countries are beginning to realise that true strength is not only about military power or GDP numbers. It is also about whether a nation can produce the essentials needed to keep its industries running and its economy moving.
Copper has quietly become one of those essentials. Unlike gold, which largely sits in lockers and vaults as a store of value, copper lives inside the modern economy. It runs through electric vehicles, renewable energy systems, semiconductors, batteries, power grids and data centres. Every conversation about clean energy, manufacturing growth or digital infrastructure eventually circles back to copper.
That is why the Prime Minister’s remarks come at an important moment.
The ongoing instability in West Asia and tensions around the Strait of Hormuz have once again reminded countries how vulnerable global supply chains can be. India already depends heavily on these routes for energy imports. But increasingly, it also depends on them for critical industrial materials.
And this is where India’s copper story becomes worrying.
As the Prime Minister pointed out, not very long ago, India was a net exporter of refined copper. The country had built enough domestic capacity to meet its own needs while also supplying overseas markets. But that changed dramatically after the closure of the Vedanta-owned Sterlite Copper plant in Thoothukudi in 2018.
The Sterlite plant accounted for nearly 40 percent of India’s copper smelting capacity and produced around 400,000 tonnes annually. Once it shut down, the impact was immediate. Imports rose sharply and exports fell.
Today, India imports large quantities of refined copper cathodes, spending thousands of crores every year. The irony is difficult to ignore — at a time when India is pushing for self-reliance and positioning itself as a global manufacturing hub, it is increasingly dependent on imports for one of the world’s most critical industrial metals.
What makes this even more significant is the demand that lies ahead.
India’s copper requirement is expected to rise sharply over the next two decades. Electric vehicles, renewable energy projects, railway electrification, urban infrastructure and data centres will all require massive amounts of copper. Industry estimates already suggest demand could more than double by 2030. Longer-term projections indicate the numbers could become exponentially larger by 2047.
This raises a difficult but necessary question: can India realistically dream of becoming a manufacturing and clean-energy powerhouse while remaining dependent on imported copper?
For years, the conversation around the Sterlite plant has been deeply polarised — industry versus environment, jobs versus health, economics versus ecology. But perhaps the time has come to move beyond that binary thinking.
People living around industrial zones have genuine concerns, and environmental safeguards cannot be treated casually. Public health and local ecosystems matter. India cannot pursue growth at the cost of its citizens’ wellbeing. At the same time, shutting down strategic industrial capacity without creating viable alternatives carries long-term consequences too — consequences that are now more visible than ever.
What India needs is not a return to outdated industrial models, but a new framework altogether.
Recent proposals placed before the Madras High Court suggest the possibility of a “green copper” restart with tighter emission controls, stronger waste-management systems, expanded desalination and water recycling facilities, independent audits and greater community oversight.
Although the proposal is yet to be cleared, the broader idea deserves serious consideration: can India create heavy industries that are both globally competitive and environmentally responsible?
The answer may lie in bringing together environmental experts, industrial specialists, policymakers and community representatives to independently assess what a sustainable path forward could look like — not through political slogans or emotional binaries, but through science, transparency and accountability.
Because the copper debate is no longer just about one company or one plant in Tamil Nadu. Copper production supports several downstream sectors, including fertiliser and chemical manufacturing, through industrial by-products such as sulphuric acid. Any disruption in copper production therefore ripples outward into agriculture, manufacturing and multiple other sectors, gradually turning an industrial issue into a larger economic vulnerability.
Around the world, countries are aggressively securing access to critical minerals and industrial materials. The United States, Europe and China have all recognised that future economic power will depend not only on technology and innovation, but also on supply-chain resilience and control over strategic resources.
India cannot afford to remain complacent. The copper debate is ultimately about the kind of nation India wants to become over the next 25 years — a country that merely consumes the future, or one that helps build it.
And perhaps that is the larger message behind the Prime Minister’s remarks in Secunderabad: self-reliance cannot be built through slogans alone. It requires difficult decisions, balanced policies and the ability to learn from past mistakes without becoming trapped by them.
Disclaimer
Views expressed above are the author’s own.
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