Molten Salt Solutions Raises $7 Million to Scale Lithium Enrichment for Advanced Nuclear Energy

Funding will accelerate pilot-scale production of lithium-6 and lithium-7 isotopes, strengthening a critical domestic supply chain for next-generation energy technologies.

SANTA FE, N.M., Aug. 31, 2026 /PRNewswire/ -- Molten Salt Solutions, Inc. (MSS), a New Mexico-based company with a novel large-scale production method for enriching lithium, announced the closing of an oversubscribed $7 million round of seed funding. The round was led by Dolby Family Ventures with participation from Vanedge Capital Partners, Alumni Ventures, Gaingels, True Ventures, and Future Ventures. 

Fusion systems require large, reliable supplies of enriched lithium-6. Lithium-7 is used in advanced fission molten salt reactors. Currently, the United States lacks commercial-scale production of either isotope, making rebuilding the secure, domestic source of both isotopes a recognized national priority for energy security. 

"Fusion and small modular fission reactors are racing toward commercialization and are necessary to meet growing global power demands. Both depend on a secure domestic supply of enriched lithium. MSS meets this need," said John Elling, CEO of Molten Salt Solutions. "This investment enables us to scale our technology and production capability to meet the demands of advanced reactors today and in the future."

The financing will accelerate MSS's transition from laboratory-validated technology to pilot-scale production fulfilling active customer agreements, expand the technical and operations teams, and deepen partnerships across the fusion and advanced nuclear supply chain. The company is also advancing a broader portfolio of enriched isotopes to serve emerging markets. 

This raise follows MSS's $3 million pre-seed and more than $5 million in grant funding, including support through New Mexico's Advanced Energy Award. 

About Molten Salt Solution: Molten Salt Solutions, Inc. (MSS) is a New Mexico based company producing enriched stable isotopes for fusion and the advanced nuclear market. Founded by serial entrepreneurs and isotope enrichment leaders from Los Alamos National Laboratory, MSS has developed a proprietary platform that is 100X more efficient than legacy enrichment approaches. MSS is building a secure domestic supply of high-purity lithium-6 and lithium-7 for the fusion and advanced-nuclear sectors, alongside a growing portfolio of enriched isotopes for advanced technologies. Learn more at https://moltensaltsolutions.com; [email protected]. 

About Dolby Family Ventures: Dolby Family Ventures ("DFV") is an early-stage venture capital firm. Founded in 2014, DFV formalizes the Dolby family's ongoing, multi-generational commitment to Ray Dolby's legacy of discovering and supporting visionary entrepreneurs. DFV focuses on seed and pre-seed investments across a range of science- and technology-driven sectors, including climate, robotics and automation, aerospace, digital innovation, and compute, as well as on disease-modifying treatments in neurodegeneration and neuropsychiatry. Advanced energy solutions has been an active area of investment for the firm over the past decade, having made over 10 investments since 2016 supporting this thesis. DFV is not affiliated with Dolby Laboratories, Inc. For more information, visit www.dolbyventures.com. 

About Vandege Capital: Vanedge Capital is an early-stage venture capital fund based in Vancouver, Canada. Founded in 2010, the firm partners with founders solving hard technology problems across energy, advanced materials, computing, artificial intelligence, computational biology, and defense. Notable investments include SpaceX, Echodyne, Mojo Vision, Canalyst, and Raxium. For more information, visit vanedgecapital.com.

About Alumni Ventures: Alumni Ventures is one of the most active venture firms in the world, making startup investing more accessible for individuals. Powered by an 850,000+ member network of alumni, founders, experts, investors, and subscribers, AV co-invests alongside leading firms like Andreessen Horowitz, Sequoia, and NEA. The firm regularly invests in the nuclear and broader energy sectors, backing companies such as Pacific Fusion, X-Energy, Aalo Atomics, Radiant Nuclear, Thea Energy, Realta Fusion, and Valar Atomics.

Since its founding in 2014, Alumni Ventures has raised over $1.6 billion from over 25,000 Investors and Syndicate Members, and invested in 1,800+ companies across every major sector and stage. The firm has been named one of PitchBook's most active U.S. venture firms every year since 2018, and was ranked #20 in Time Magazine's list of America's Top Venture Capital Firms of 2025. Learn more at av.vc.

About Gaingels: Gaingels is amongst the largest investors in the world aiming to show the world that equity of access and representation in venture capital delivers positive returns. Learn more at https://gaingels.com/.

About True Ventures: True Ventures is a Silicon Valley venture capital firm that is first to believe in brilliant founders and invests in them at the earliest stages, when partnership matters most. Founded in 2005, the firm manages $4 billion in committed capital across over 450 teams spanning AI, software, hardware, cybersecurity, consumer, digital biology, and more. Notable investments include Enveda, Iceye, Handshake, Basecamp Research, Peloton, Duo Security, Ring, HashiCorp, and more. For more information visit www.trueventures.com.

About Future Ventures: Future Ventures is an early-stage venture capital firm investing in frontier technologies that have the potential to transform industries and address some of the world's most consequential challenges. Founded in 2018, the firm manages over $1.4B in committed capital and partners with visionary founders at the earliest stages, focusing on breakthrough science and engineering across energy, advanced computing, AI, biotechnology, aerospace, robotics, novel chemistry, and beyond. Future Ventures has a long-standing focus on advanced energy, with investments spanning fusion, next-generation nuclear, energy storage, critical materials, and other technologies aimed at enabling abundant, reliable, and sustainable energy. Notable investments include Commonwealth Fusion Systems, Realta Fusion, Subcritical Systems, and Red Metals. For more information, visit future.ventures.

SOURCE Molten Salt Solutions