The chokepoints
Each layer of the supply chain has its own physics, its own moat, and its own catalyst calendar. Pick a strait.
Enrichment & HALEU
Centrus runs the only NRC-licensed US HALEU cascade; Western SWU is essentially two suppliers plus a Russian import ban with waivers expiring.
LEU · SILXY · CCJ · GENERALMATTER
IIUranium conversion & deconversion
UF6 conversion is a three-plant Western market and the Metropolis, Illinois plant is the only US converter.
SOLS · CCJ · UEC · BWXT · LEU · GEV
IIIUranium supply & mining
Utilities are structurally under-covered into the late 2020s while Western restarts chase a deficit the spot market already prices.
CCJ · SRUUF · UUUU · UEC · EU · DNN · NXE · URNM
IVFuel fabrication & TRISO
Fabricated assemblies come from a handful of licensed lines; TRISO and metallic SMR fuels need facilities that mostly don't exist yet.
BWXT · LEU · XE · CCJ · GEV · LTBR · WESTINGHOUSE
VLarge forgings & heavy components
Reactor pressure vessels need ultra-large forgings only a few plants on earth can pour; order books fill years ahead.
BWXT · CW · JPSWY · HII
VIZirconium & specialty metals
Nuclear-grade zirconium sponge and cladding tube is a single-digit-supplier market squeezed between defense and civilian demand.
ATI · CCJ · LTBR · FRAMATOME
VIISMR & advanced reactor platforms
The visible layer: listed SMR developers racing NRC milestones and first concrete — pre-revenue, catalyst-dense, repricing violently.
BWXT · OKLO · SMR · NNE · LTBR
VIIIRestarts, uprates & nuclear utilities
Existing gigawatts are the only nuclear that ships this decade; restarts, uprates and datacenter PPAs carry dated public catalysts.
CEG · VST · TLN · NEE · PEG
IXInstrumentation, controls & outage services
Every reactor — new or restarted — buys radiation detection, I&C, dosimetry and outage services from a thin specialist bench.
MIR · CW · BWXT · FLR
XPrivate giants & exposure vehicles
Westinghouse, X-energy, TerraPower, Kairos, Urenco — the nuclear cap tables without tickers, and the listed paths into them.
CCJ · BEP · XE · LEU · WESTINGHOUSE · TERRAPOWER · KAIROSPOWER · URENCO