Solstice Advanced Materials

Specialty materials company that is the only U.S. supplier of uranium hexafluoride (UF6), made at its Metropolis, Illinois plant. ¹

Uranium conversionFission

Plants and sites 2

Solstice Advanced Materials operates Metropolis Works Uranium Conversion Facility Fuel plant · Operating · Metropolis, IL

³converdyn.com · checked 2026-10-10 ²world-nuclear-news.org High confidence Report a correction: Solstice Advanced Materials operates Metropolis Works Uranium Conversion Facility
Solstice Advanced Materials owns Metropolis Works Uranium Conversion Facility Fuel plant · Operating · Metropolis, IL · Only US uranium conversion (U3O8 -> UF6) plant. NRC license SUB-526 (DOE EA-2184 FONSI, June 2022: 'License SUB-526 Metropolis Works Uranium Conversion Facility (Massac County, Illinois)'); WNN says the NRC license is valid until 2060. Restarted July 2023 after a 2017 suspension (WNN). Source is ConverDyn's site (a Solstice partnership), so 0.8; Solstice's own investor release returned HTTP 403.

³converdyn.com · checked 2026-10-10 ²world-nuclear-news.org High confidence Report a correction: Solstice Advanced Materials owns Metropolis Works Uranium Conversion Facility

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