U.S.-China Competition Over Deep-Sea Mineral Resources in the Cook Islands

The Cook Islands, located in the Pacific Ocean, have become a focal point in the escalating competition between the United States and China over deep-sea mineral resources. Both nations are exploring the potential of the seabed, which is rich in polymetallic nodules containing critical minerals such as cobalt, nickel, and manganese. These minerals are essential for clean energy technologies and other industrial applications. The U.S. and China are vying for influence in this region, with geopolitical analyst Jocelyn Trainer noting a "race to the bottom of the sea" as both superpowers seek to establish dominance in seabed mining.

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The Cook Islands government currently prohibits seabed mining but is conducting technical and environmental assessments to evaluate the feasibility of future mining activities. In April 2025, President Donald Trump signed an executive order aimed at accelerating seabed mineral development in U.S. and international waters. Following this, a U.S. research vessel began mapping parts of the Cook Islands' underwater territory, with the U.S. providing $250,000 in technical assistance to support local capacity building.

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In contrast, China has signed a cooperative agreement with the Cook Islands to explore seabed mineral development, establishing a joint committee to oversee this initiative. China holds more exploration licenses in international waters than any other nation and is also considering partnerships with other Pacific nations, including Kiribati.

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The push for deep-sea mining has sparked significant environmental concerns. Critics, including scientists and local environmental groups, warn that mining activities could cause irreversible damage to fragile ocean ecosystems. Douglas McCauley, a professor of ocean science, expressed concerns about the potential for severe ecological harm, including the discharge of wastewater plumes into the ocean.

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In the Cook Islands, opinions on deep-sea mining are divided. While some view it as a means of economic development, others, like Alanna Matamaru Smith from the Te Ipukarea Society, call for independent oversight of environmental research, arguing that it is influenced by the very companies seeking to profit from mining.

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The U.S. State Department has emphasized the importance of advancing science to inform responsible seabed mineral development in the Pacific. Meanwhile, China has stated its commitment to adhering to international law in its mining activities, although it has not publicly addressed concerns raised about environmental impacts.

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There is a notable discrepancy in the responses to deep-sea mining between the U.S. and China. While the U.S. has been criticized for expediting mining activities without being a signatory to the United Nations Convention on the Law of the Sea, China claims to operate within the framework of international law. This divergence raises questions about the regulatory environment governing deep-sea mining and the potential for unregulated exploitation.

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As the U.S. and China continue to navigate their strategic rivalry in the Cook Islands, the future of deep-sea mining remains uncertain. The Cook Islands' government is poised to make decisions based on scientific assessments, while the geopolitical stakes continue to rise. The outcome of this competition will likely have significant implications for both the environment and the balance of power in the Pacific region.

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