Key Takeaways
- Trump’s policy revives U.S. interest in deep-sea mining for critical minerals.
- U.S. firms seek battery metals from polymetallic nodules in the Pacific.
- China’s rare earth dominance accelerates American offshore ambitions.
- Seabed mining lacks legal guardrails, raising environmental concerns.
- Marine scientists warn of irreversible harm to deep ocean ecosystems.
Former President Donald Trump’s renewed focus on U.S. dominance in critical minerals has drawn fresh attention to an unlikely frontier: the ocean floor.
At a rally in Michigan last month, Trump pledged to “liberate” America from foreign-controlled supply chains, hinting at renewed support for undersea mining ventures long stalled by environmental opposition and legal uncertainty. Behind the rhetoric lies a broader geopolitical calculus: seafloor polymetallic nodules—blackened, metal-rich rocks strewn across the Pacific—contain battery metals key to electric vehicles and defense technologies. And China is already ahead.
“The stakes are huge,” said Dr. Julie Klinger, a geographer at the University of Delaware who studies mineral supply chains. “We are watching a rush for resources unfold in an ecosystem we barely understand.”
Resource Race in International Waters
China processes more than 70% of the world’s cobalt and dominates the refining of rare earth elements. The U.S., by contrast, holds limited domestic reserves. That imbalance has sharpened American interest in unconventional sources—including the Clarion-Clipperton Zone (CCZ), a vast undersea plain between Hawaii and Mexico.
U.S.-affiliated firms such as The Metals Company, Ocean Minerals LLC, and DeepGreen hold exploration rights through partnerships with small Pacific nations. These companies aim to harvest nodules containing cobalt, nickel, manganese and copper—materials increasingly central to the energy transition.
“We’re standing on the edge of a technological revolution and an ecological catastrophe,” said Dr. Sylvia Earle, former chief scientist at the National Oceanic and Atmospheric Administration. “The ocean floor isn’t a blank slate—it’s a living system.”
Pentagon Pressure Meets Legal Vacuum
A 2024 white paper from the Pentagon warned that delays in securing marine-based mineral reserves could “undermine national security readiness.” Yet Washington’s capacity to act remains constrained. The U.S. never ratified the United Nations Convention on the Law of the Sea (UNCLOS), limiting its direct influence over the International Seabed Authority (ISA), the body tasked with managing mineral claims in international waters.
Meanwhile, China Minmetals and other Chinese state firms have already secured exploration contracts and launched prototype vehicles capable of harvesting nodules at depths exceeding 5,000 meters.
“UNCLOS was never built to handle a global mineral gold rush,” said Duncan Currie, an international lawyer with the Deep Sea Conservation Coalition. “It’s a governance system being stretched to its limits.”
Environmental Alarm Grows Louder
A growing chorus of scientists and civil society groups warns that commercial-scale seabed mining could devastate ecosystems that have evolved in near-total isolation. A 2021 Nature study found that nodule harvesting stirs sediment plumes that may damage filter-feeding species and disrupt biogeochemical cycles for decades.
Some Pacific nations have also reversed course. While Nauru has championed deep-sea mining, others including Fiji and Palau have joined calls for a global moratorium, citing environmental risks and concerns over opaque corporate deals.
Despite this, momentum builds. Norway recently became the first country to approve commercial seabed mining in its continental shelf, and the ISA’s self-imposed July 2023 deadline to finalize mining rules has passed without consensus. Industry lobbyists now argue that inaction could cost Western countries their foothold.
The Metals Company Waits at the Water’s Edge
Gerard Barron, CEO of The Metals Company, has spent years positioning his firm as the vanguard of sustainable mining, despite persistent skepticism. His company’s pilot operations in the CCZ aim to harvest nodules while minimizing ecological disruption—a claim many marine scientists dispute.
The firm’s stock has seesawed in response to policy signals and public scrutiny. It remains locked in a regulatory gray zone: legally permitted to explore, but still years from full-scale extraction.
“The minerals are there, the demand is there, and the technology is close,” Barron said during a recent investor call. “What’s missing is political certainty.”
That may change. Trump’s return to the campaign trail has elevated seabed mining from fringe aspiration to potential policy plank, with GOP-aligned think tanks urging executive orders to bypass congressional gridlock.
A Precipice or a Promise
Trump’s push to weaponize critical minerals policy has brought the long-dormant seabed mining industry back into the spotlight. But with legal ambiguity, environmental alarm, and intensifying global rivalries, the path forward remains murky.
“If we rush in, we risk repeating the same extractive mistakes—this time in the last untouched ecosystem,” said Dr. Amon of the Deep Ocean Stewardship Initiative. “We need science, not slogans, to guide what comes next.”
