Beneath a remote Pacific island that few have ever visited, the United States and Japan have turned their gaze toward the deep ocean floor, where vast rare earth deposits may hold the key to reshaping the world's most consequential supply chains. At a White House summit earlier this year, the two nations quietly committed to exploring what would be the deepest seabed mining operation ever attempted, driven less by adventure than by the strategic imperative of reducing dependence on China's dominance over critical minerals. The announcement is as much a declaration of geopolitical intent as it
U.S. and Japan eye world's deepest undersea rare earth mine to counter China
Meet centuries' worth of industrial demand from beneath the ocean
Mark
Why announce this now, if the project is so far from reality?
Mimi
Because the geopolitical calculus has shifted. China's control over rare earths has become a pressure point. Both countries see this as a long-term play—signal intent, secure rights, begin the technical work.
Mark
But six kilometers down—is that even possible?
Mimi
Possible and impossible are doing a lot of work in that sentence. The engineering exists in theory. Whether it's economically viable, whether it won't destroy the seabed ecosystem—those are open questions.
Mark
What happens if they actually pull this off?
Mimi
Supply chains rebalance. Japan and the U.S. gain leverage they don't currently have. China's monopoly weakens. But that's a very large "if."
Mark
And if they don't?
Mimi
Then we're back where we started, dependent on Beijing for materials we can't make ourselves. The announcement becomes a footnote.
Mark
What about the snails?
Mimi
They're dangerous, but they're the least of anyone's concerns right now.
Il Polso
- Two global powers have staked a claim on mineral deposits six kilometers beneath the Pacific, a depth no commercial mining operation has ever reached.
- China's grip on rare earth exports has made this remote, snail-inhabited island a flashpoint in the broader contest over the materials that run the modern world.
- Skeptics are swift to note that seabed mining at commercial scale remains an unproven frontier, with engineering demands that dwarf anything yet attempted.
- International rules governing who may mine the deep ocean, and under what conditions, are still being debated — leaving the legal ground as unsettled as the seabed itself.
- Environmental advocates warn that the consequences of industrial extraction at such depths are poorly understood, adding another layer of uncertainty to an already complex undertaking.
Beneath a remote Pacific island that few have ever visited, the United States and Japan have turned their gaze toward the deep ocean floor, where vast rare earth deposits may hold the key to reshaping the world's most consequential supply chains. At a White House summit earlier this year, the two nations quietly committed to exploring what would be the deepest seabed mining operation ever attempted, driven less by adventure than by the strategic imperative of reducing dependence on China's dominance over critical minerals. The announcement is as much a declaration of geopolitical intent as it is an engineering proposal — one that will test the limits of human technology, international law, and environmental stewardship for years to come.
When President Trump and Prime Minister Takaichi met at the White House in March, one item in their discussions drew little notice at the time: a plan centered on Minamitorishima, a flat, barren Pacific island more than a thousand miles southeast of Tokyo. The island itself is nearly nothing — a weather station, a runway, a population of dangerous snails. But beneath it, locked in mud roughly six kilometers below the ocean's surface, lie rare earth mineral deposits that U.S. and Japanese officials say could meet centuries of global industrial demand.
The announcement landed with immediate skepticism. No deep-sea mining operation has ever reached commercial scale anywhere in the world, and the deposits at Minamitorishima would be among the deepest ever attempted. The engineering challenges are formidable, and the international framework governing seabed mining remains unresolved — nations have yet to agree on the rules, rights, or environmental safeguards that would govern such an undertaking.
The strategic logic, however, is clear. Rare earth minerals are indispensable to smartphones, military systems, and renewable energy infrastructure, and China currently controls the dominant share of global production and export. For Washington and Tokyo, finding an alternative source is less a matter of curiosity than of economic and national security. Whether the ocean floor near Minamitorishima can actually deliver on that promise — technically, legally, and environmentally — is a question that will occupy engineers, regulators, and policymakers for a long time to come.
When President Trump and Prime Minister Takaichi sat down at the White House in March, the conversation that would later capture international attention barely registered at the time. Buried in their discussions was a plan concerning a place most people have never heard of: Minamitorishima, a remote Japanese island in the Pacific Ocean, more than a thousand miles southeast of Tokyo.
The island itself is unremarkable—a flat, barren strip of land roughly the size of a few city blocks, home to little more than a weather station, a runway, and a population of dangerous snails. It is not a place where people choose to spend time. But what lies beneath it is what drew the attention of two major powers. Minamitorishima sits directly above vast deposits of rare earth minerals, locked in mud at approximately six kilometers below the ocean's surface. In a joint statement released after the summit, U.S. and Japanese officials declared these deposits could "meet centuries' worth of industrial demand" if successfully extracted.
The announcement was met with immediate skepticism from observers and industry analysts. The reason is straightforward: despite decades of exploration and mapping of the world's seabeds, no mining operation has ever reached commercial scale in the deep ocean. The technical challenges are immense. The deposits at Minamitorishima would rank among the deepest ever considered for extraction, making the engineering requirements formidable. Beyond the engineering questions, international guidelines governing seabed mining remain unsettled. Countries have not yet agreed on the rules that would govern who can mine, how, and under what environmental safeguards.
The timing of the announcement reflects broader geopolitical currents. Rare earth minerals are essential to modern manufacturing—they power everything from smartphones to military systems to renewable energy infrastructure. China currently dominates global rare earth production and export, giving it significant leverage over supply chains worldwide. For the United States and Japan, developing alternative sources represents a strategic priority, a way to reduce dependence on a single supplier and diversify their access to materials critical to their economies and security.
Yet the path from announcement to actual mining operation remains unclear and potentially long. The technical obstacles are real. The regulatory landscape is unsettled. Environmental concerns about deep-sea mining have not been resolved. No one knows whether extracting minerals from six kilometers below the surface is economically viable, or whether the international community will ultimately permit it. What began as a quiet conversation at the White House has opened a question that will likely occupy policymakers, engineers, and environmental advocates for years to come.
Citazioni salienti
Could meet centuries' worth of industrial demand— U.S.-Japan joint statement on the mining cooperation
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Politics & Governance