California Nanotechnologies is closing in on its first commercial contracts in the small modular reactor market. That was the message from Quinsam Capital management during the Q2 2026 earnings call, as executives fielded an analyst question about the firm’s stake in the California-based company. The timeline remains uncertain, but the direction of travel is clear.
At the heart of the thesis is technology. Quinsam argues that California Nanotechnologies may be the only viable supplier of boron carbide control rods and thermal shields manufactured through spark plasma sintering — a high-precision densification process that produces components with superior mechanical properties compared to conventional methods. If that position holds, it would be extremely difficult for competitors to replicate in the near term.
Control rods are not one-off components: they degrade through normal reactor operation and require periodic replacement. That makes them a source of recurring revenue for the supplier — a point Quinsam management was careful to emphasize, because it fundamentally changes the investment case. This is not a single-delivery contract but an ongoing relationship with future SMR operators. The California company is reportedly in discussions with more than one U.S. firm actively developing these plants.
No small-scale nuclear reactor has yet reached commercial operation, but surging electricity demand — increasingly driven by data centers — is pushing many developers to accelerate their programs. NuScale Power, the sector’s leading publicly listed player, closed Q2 2026 with $1.9 billion in liquidity and received acceptance from the Nuclear Regulatory Commission for the Construction Permit Application review of its KRONOS module, the reference design for the University of Illinois project. Broadly speaking, the industry is transitioning from the design phase into the concrete reality of supply chain development.
For Quinsam, the stake in California Nanotechnologies is part of a portfolio built on long-term bets in highly specialized niches. The Canadian investment firm also repurchased shares during the quarter, reducing its share count. Management framed the buyback around its conviction that the portfolio is trading at a discount to its intrinsic value — a familiar argument for holding companies that struggle to surface the value of unlisted assets.
Should contracts with SMR developers materialize, California Nanotechnologies would enter a market poised for substantial growth in the coming years, particularly in the United States, where the current administration has made nuclear energy a cornerstone of its energy policy. The window to establish a position as a preferred supplier of critical components remains open — but it is narrowing as projects advance and supply chains consolidate. Those who arrive first with a certified, scalable technology hold an advantage that latecomers will find very hard to close.
