Composed of manganese, nickel, copper, cobalt and other trace minerals, polymetallic nodules hold some of the key ingredients needed to fuel the energy transition.
With $16 million in funding from the Biden administration, portions of California, Colorado, Nevada, Arizona, New Mexico and Utah will be mapped for critical mineral potential.
South32 aims to accelerate development of the first new US manganese mine for decades as carmakers rush to secure supply of the metal needed in EV batteries.
The initiative, launched in June, is designed to funnel investment toward developing countries with mining projects that adhere to stricter environmental, social and governance standards.
The world's biggest producer of manganese said its underlying earnings for the year ended June 30 came in at $2.6 billion, compared with $489 million a year ago.