Trevor Hall interviews Gerard Barron, CEO of The Metals Company (TMC), focusing on the emerging field of deep sea mining, particularly the NORI-D project in the Clarion Clipperton Zone. They discuss the potential of polymetallic nodules as a critical mineral resource, the exploration and resource definition processes, the technical challenges faced, and the geopolitical landscape surrounding deep sea mining. Barron emphasizes the importance of reindustrialization in the USA and the need for new processing facilities to support domestic supply chains. The conversation also touches on risk management strategies and the future outlook for TMC and the deep sea mining industry.