Critical Minerals

The global demand for critical minerals—such as nickel, copper, cobalt, manganese, and rare earth elements—is accelerating, driven not only by the energy transition but also by increasingly strategic industries such as defense, advanced manufacturing, and digital infrastructure.

Electric vehicles, wind turbines, and battery systems remain key drivers, but critical minerals are also essential for high-performance alloys, secure communications, and advanced sensor technologies used in aerospace and defense. According to the IEA’s latest analysis, demand for nickel, copper, and cobalt is expected to more than double by 2040, with supply chains facing increasing pressure from both industrial growth and geopolitical uncertainty.

While terrestrial mining remains part of the solution, many new prospects are located in ecologically sensitive or politically unstable regions. Moreover, declining ore grades, waste challenges, and ethical concerns continue to limit scalability. At the same time, China maintains a dominant position in the global supply chain—controlling over 90% of refining capacity for rare earths and graphite, and a significant share in cobalt, nickel, and copper processing.

This concentration poses risks to supply chain resilience and national security. The U.S. Department of Defense has identified critical minerals as foundational to industrial and strategic autonomy, yet remains heavily import-dependent—particularly on China. As geopolitical tensions rise, securing diversified and resilient sources of these materials has become a strategic imperative.

Glomar Minerals is committed to advancing deep sea mineral sourcing as a reliable and geopolitically independent pathway to meet the growing demand for critical resources—supporting industrial resilience, technological innovation, and strategic independence.

Global Critical Minerals Outlook 2025

Deep sea minerals – global occurrences

Three main deposit types of deep sea minerals exist: polymetallic nodules and manganese crusts, which are both found in the deeper part of the oceans— and seabed massive sulphides, which are found close to the spreading ridges.

Critical minerals are abundant in marine deposits and can secure supply with a low environmental footprint. Deep sea minerals have significantly higher enrichment compared to terrestrial resources and both manganese nodules and crust have no toxic waste.

Largest remaining resources

Global distribution of deep sea minerals

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Polymetallic Nodules

Polymetallic Nodules are found throughout the global ocean, predominantly on the surface of sediment-covered abyssal plains at water depths of approximately 4000–6000 meters. Most nodules are partly submerged in the sediment and vary in diameter from 2 cm to 20 cm.

Polymetallic nodules grow by accumulation of Mn and Fe oxides around a nucleus. Unlike manganese crusts, nodules acquire metals from two sources ambient seawater (hydrogenetic) and sediment pore waters (diagenetic).

Key minerals are nickel, cobalt, copper, manganese, and rare earths.