Louis O'Connor explains how investors can own rare earth and technology metals as physical assets amid tightening supply. He links demand to AI data centers, electric vehicles, renewables, and defense, while warning China dominates roughly 80% of supply. From the US Geological Survey's 45 to 50 critical minerals, he focuses on eight to ten investable metals like gallium, indium, rhenium, and dysprosium. Because many are trace byproducts rather than standalone mines, supply shocks can create scarcity-driven price spikes. His approach requires chain-of-custody sourcing, certified storage, and a minimum $10,000 purchase. He also offers buybacks and says premiums have reached about 20% to 40% when exporters restrict shipments, with a five-year hold as the baseline. Takeaway: diversify across metals with multiple uses and plan for volatility instead of chasing daily headlines.