US Deep-Sea Mining Policy Is Eroding Its Pacific Partnerships

US Deep-Sea Mining Policy Is Eroding Its Pacific Partnerships

The Diplomat – Asia-Pacific
The Diplomat – Asia-PacificApr 30, 2026

Why It Matters

By sidestepping the ISA, the U.S. risks eroding Pacific alliances that are vital for secure critical‑mineral supply chains, while giving China a freer hand to dominate seabed resources.

Key Takeaways

  • U.S. deep‑sea mining order bypasses UNCLOS and ISA.
  • Parallel permits threaten Pacific Island nations' ISA sponsorship.
  • China expands Pacific mineral partnerships as U.S. multilateral framework erodes.
  • Pacific leaders demand fair revenue; current ISA split gives them <$400k annually.
  • Regional collective framework could secure better terms and strategic deterrence.

Pulse Analysis

S.

government after China’s 2024‑2025 export curbs exposed a fragile critical‑mineral supply chain. Executive Order 14285, signed in April 2025, tasked federal agencies with leading research, technology development, and resource extraction, culminating in the $12 billion Project Vault announced in January 2026.

While the initiative promises a domestic source of rare earths, cobalt and manganese needed for defense electronics and AI hardware, it also marks a stark departure from the multilateral regime established by the United Nations Convention on the Law of the Sea (UNCLOS) and administered by the International Seabed Authority (ISA).

US Deep-Sea Mining Policy Is Eroding Its Pacific Partnerships

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