Two Firms Dive Into America's Seabed Mining Future

Deep Sea Rare Minerals and The Metals Company USA partner to connect Pacific Ocean exploration with US-based nodule processing

7 Apr 2026

The minerals that power electric vehicles and defence systems are found in abundance not in any friendly nation's territory, but scattered across the Pacific seabed, two miles below the surface. Two American companies are now betting that this geological inconvenience can be turned into a strategic opportunity.

Deep Sea Rare Minerals and The Metals Company USA signed a memorandum of understanding on April 2nd to link their operations across what they describe as a domestic deep-sea supply chain. The former operates autonomous underwater vehicles that survey the ocean floor; the latter has developed technology to process polymetallic nodules, the potato-sized formations that contain nickel, copper, cobalt, and manganese. The arrangement is straightforward in theory: one firm pulls nodules from the seabed, the other refines them onshore.

The commercial logic is anchored, at least partly, in geography. The Metals Company USA is seeking a lease at the Port of Brownsville, Texas, to build a processing facility intended to serve multiple operators rather than a single supply chain. If realised, this shared-hub model could lower the entry costs for smaller players and attract further private investment into a sector that has long promised more than it has delivered.

Regulatory tailwinds are helping. On March 31st, the National Oceanic and Atmospheric Administration confirmed that Deep Sea Rare Minerals' exploration licence application had achieved full compliance under the Deep Seabed Hard Mineral Resources Act. The company holds priority rights over roughly 150,000 square kilometres of Pacific seabed, including areas in the Clarion-Clipperton Zone and near Guam, with an exploration survey planned for later this year.

Anthony Romeo, chief executive of Deep Sea Rare Minerals, said the agreement "establishes a key framework" for combining offshore and onshore expertise. Gerard Barron of The Metals Company called his new partner a credible sharer of "the vision for a domestic end-to-end nodule ecosystem."

Vision, however, is the operative word. The deal remains contingent on a prefeasibility study, and commercial nodule processing at scale has never been achieved anywhere. Environmental opposition is stiffening internationally, and the legal architecture governing American seabed mining is still being tested. Washington's enthusiasm for the project is plain. Whether the ocean floor will cooperate is rather less certain.