U.S. rare earth vulnerability lies in separation capacity, not mining. Graphene-based tech challenges China's solvent extraction dominance.
Company Profile
Metasorbex
Overview
About Metasorbex
Metasorbex Corporation is a US-based programmable-materials platform company applying selective chemistry to critical-minerals recovery and carbon capture utilization. Launched in 2023 and expanding into rare earth element (REE) separation in 2025, Metasorbex uses functionalized sorbent materials to selectively extract rare earths from unconventional, low-value feedstocks such as coal fly ash, mine tailings and industrial waste streams. Its modular, column-based process captures rare earth ions and uses staged elution to separate light and heavy REEs, including adjacent elements, while recycling secondary waste back into cement production for a circular workflow. Positioned in the midstream separation and processing stage of the rare earth supply chain rather than upstream mining, the privately held company emphasizes sustainability and distributed processing. Metasorbex’s dual platform spans both rare earth recovery and carbon-capture applications, targeting resilient domestic critical-mineral supply chains.
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REEx Intelligence
