How many years of copper reserves are left to power our technology?
The race for «red gold»: Countries that dominate copper reserves and the future of economic power.
World Copper Reserves and Resources
According to the USGS , known and economically mineable copper reserves worldwide are estimated at 890 million metric tons . Globally identified resources, which include both known reserves and deposits not yet viable, amount to approximately 2.1 billion tons .
Regarding undiscovered copper resources, the USGS has estimated that there are approximately 3.5 billion metric tons of copper in untested deposits worldwide. This suggests that the potential for future discoveries is very high.
Countries with the Largest Reserves and Production
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| Country | Reserves (Metric Tons) | Annual Production (Metric Tons) |
Exports (Estimated Value)
|
| Chile | 190,000,000 | 5,372,694 |
US$ 46.5 billion (2023)
|
| Peru | 120,000,000 | 2,755,139 |
US$ 23.3 billion (2023)
|
| Australia | 100,000,000 | 810 |
US$ 19.3 billion (2023)
|
| DR of Congo | 80,000,000 | 3,148,567 | Not available |
| USA | 79,000,000 | 1,100,000 |
US$ 3.8 billion (2023)
|
| Mexico | 53,000,000 | 700 | Not available |
Copper production is dominated by a few countries that hold the largest reserves. The following table summarizes key data for 2023 and 2024, according to the aforementioned sources.
Note: Export figures correspond to 2023 and reflect total production (concentrates and refined products). Reserves and production figures may vary slightly between different sources and years.
Estimated Reserve Depletion
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| Country | Annual Production (Tons) | Known Reserves (Tons) |
Remaining Years (Estimated)
|
| Chile | 5,372,694 | 190,000,000 | ≈ 35 years |
| Peru | 2,755,139 | 120,000,000 | ≈ 44 years old |
| Australia | 810 | 100,000,000 | ≈ 123 years |
| DR of Congo | 3,148,567 | 80,000,000 | ≈ 25 years |
| USA | 1,100,000 | 79,000,000 | ≈ 72 years |
| Mexico | 700 | 53,000,000 | ≈ 76 years |
Calculating the depletion of copper reserves is complex, as it depends on future demand, the discovery of new deposits, and the advancement of recycling technologies. The following table presents a hypothetical and very simplistic estimate based on dividing known reserves by each country’s current annual production. This is not a definitive projection , but rather an illustration to help understand the potential reserves in the coming years under current conditions.
Running out of enough copper for industries presents a number of serious and multifaceted risks, as this metal is critical to nearly every aspect of modern technology and infrastructure.
Risks of running out of enough copper to supply industries
1. Slowdown in the Energy and Technological Transition
Copper is an irreplaceable electrical conductor and a key component for clean technologies. A shortage would directly affect:
- Renewable energy: A huge amount of copper is needed for solar panels, wind turbines, and the power grids that distribute that energy. A copper shortage would hinder the construction of new plants and the modernization of infrastructure, hampering the fight against climate change.
- Electric vehicles (EVs): EVs use up to four times more copper than internal combustion cars. A limited supply would halt mass production, impacting global transport decarbonization goals.
- Electronic devices: The manufacturing of computers, smartphones, and other electronic devices would be compromised, as they all rely on copper for their circuitry and wiring.
2. Economic and Supply Chain Impact
A copper shortage would not only affect the industries that use it, but would have a domino effect on the global economy.
- Price increases: The law of supply and demand would lead to a drastic increase in the price of copper, making everything from building construction to household appliance production more expensive. This could lead to inflation and an economic slowdown.
- Supply chain disruption: Companies would be unable to obtain the copper they need, leading to factory shutdowns, product shortages, and job losses in key sectors such as manufacturing and construction.
3. Geopolitical and Environmental Risks
Growing demand and the finite nature of the resource would intensify global competition, generating tensions.
- Race for reserves: Countries with large copper reserves, such as Chile and Peru, would gain enormous geopolitical influence. Competition among nations to secure long-term supply contracts would intensify.
- Instability in mining areas: The pressure to extract more copper could lead to social and political conflicts in mining regions. Furthermore, to access lower-grade deposits, mining companies would have to intensify extraction processes, which would worsen the environmental impact (more water consumption, more waste, greater water turbidity, as we discussed, and more soil disturbance).
The copper shortage is not just a technological or economic problem, but an existential threat to the future of the industry, environmental sustainability, and geopolitical stability.
Hypothetical scenario of depletion of industrially exploitable copper reserves.
If the countries with the largest copper reserves were to become the sole suppliers, the global market would undergo drastic changes on several levels.
1. Supply Collapse and Price Spike
Currently, countries like Chile and Peru (the «Copper Triangle»), along with others like Australia, Russia, and the Democratic Republic of the Congo, dominate global reserves. If they suddenly became the sole suppliers, it would create an unprecedented supply shock .
- Skyrocketing prices: The law of supply and demand would lead to a dramatic increase in the price of copper. This metal would cease to be a raw material and become an extremely volatile and expensive «strategic asset .» Prices could rise to levels that would make most of the projects that depend on it unviable.
- Industrial shutdown: The construction, electronics, and manufacturing industries would be forced to halt production if they cannot secure supplies. Companies that fail to reach an agreement with supplier countries would simply run out of copper.
2. Reconfiguration of Geopolitical Power
Control of copper would become a tool of power comparable to that of oil in the 20th century.
- Producing countries would gain immense power: Nations like Chile, which already hold a dominant position, would see their global influence multiply. They could use their copper supply as a bargaining chip in trade and political negotiations.
- Rising trade tensions: Industrialized countries, such as China, the United States, and the European Union, which lack sufficient reserves, would compete fiercely for access to the metal. This could trigger trade wars, tariffs, and the formation of new trading blocs.
3. Acceleration of the Search for Alternatives
A copper supply crisis would force disruptive innovation at high speed.
- The Recycling Boom: Urban mining and copper recycling from discarded products would become a multi-trillion-dollar industry. Countries with advanced recycling infrastructure would have a significant advantage.
- Search for substitutes: Research to find alternative materials for wiring and other applications would be accelerated, although currently there is no substitute that combines all of copper’s properties (conductivity, malleability, etc.) at a similar cost. Aluminum could be used more widely in some electrical applications, but with limitations.
In conclusion, a copper shortage limited to a few suppliers would not only impact markets, but would rewrite the global power map and force humanity to fundamentally reconsider its relationship with finite resources.