Plutonium has no conventional bulk commodity market in the atlas sense. The commercial reality is a tightly controlled isotope catalog, with DOE/NIDC offering isotope-specific plutonium in milligram quantities and the only clearly industrial market centered on Pu-238. That isotope is bought and fabricated into ceramic plutonium oxide heat sources for radioisotope power systems used on deep-space spacecraft and planetary missions.

The supply chain is state-run and reactor-based rather than mine-based. DOE's current route starts with neptunium-bearing targets, irradiates them in U.S. research reactors, processes the irradiated material into heat-source plutonium oxide at Oak Ridge, converts it into fueled clads at Los Alamos, and integrates the fuel into radioisotope power systems at Idaho National Laboratory. The modern market structure was rebuilt after DOE and NASA restarted domestic production in 2012; a 0.5-kilogram shipment in July 2023 marked the biggest delivery of new heat-source oxide in more than a decade.