Palladium is the dominant platinum-group metal by mine volume (~44% of the 6-PGM basket) and the world's primary autocatalytic metal for gasoline three-way catalytic converters (TWC), which reduce CO, hydrocarbon, and NOx emissions from light-duty vehicles. Russia (Nornickel, ~40% of world Pd supply) and South Africa (Bushveld Complex, ~38%) together account for ~78% of world mine production, creating acute geographic concentration risk. The US produces from the Stillwater Complex (Montana), the world's highest-grade primary Pd deposit, though Sibanye-Stillwater's care-and-maintenance reductions in 2023-2024 cut US output to 8,000 kg — a single-site dependency. Canada's Lac des Iles mine adds a second primary Pd source in North America.

Palladium's price history is one of the most dramatic in industrial metals: from a prolonged discount to platinum through the 2010s (driven by diesel-engine dominance in Europe preferring Pt catalysts), to a peak of $2,419/oz annual average in 2021 (supply tightness, gasoline engine resurgence, Russian supply risk premium), and then a 59% collapse to $980/oz in 2024 as electric vehicle adoption erodes gasoline catalyst demand growth, Chinese automotive sales softened, and secondary recycling (~45,000 kg Pd recovered globally in 2024) added structural supply. At near-Pt-price parity for the first time since the early 2000s, autocatalyst engineers are reassessing Pd/Pt loading ratios, though full reformulation faces multi-year lead times.

Supply security concerns remain geopolitically concentrated: Russia (under Western financial sanctions since 2022 but with PGM exports not directly sanctioned) is the world's largest Pd supplier; South Africa's deepening cost crisis and labor-relations challenges are forcing mine closures; and the Stillwater Complex in Montana is the sole primary PGM mine in the US. The long-run demand outlook is contested — aggressive EV adoption scenarios could structurally erode Pd demand by the 2030s, while the hydrogen economy offers a partial offset via Pd use in electrolyzers and some fuel cell applications.