X-Energy Advances Construction of NRC-Licensed TRISO Fuel Facility TX-1

X-Energy Reactor Company LLC has shared an update.

The company reported construction progress at its TX-1 TRISO fuel fabrication facility in Oak Ridge, Tennessee. As of January 19, X-Energy has completed the concrete foundation for TX-1, involving over 13,000 cubic yards of concrete poured across more than 1,400 truckloads since November. On January 21, the company began vertical construction by erecting the first structural steel beams. TX-1 is described as the first new U.S. Nuclear Regulatory Commission-licensed fuel facility in more than 50 years and is intended to supply TRISO fuel for X-Energy’s Xe-100 advanced reactor.

For investors, these milestones indicate that X-Energy is advancing from planning into tangible infrastructure build-out, a key de-risking step for its commercial strategy. Completing foundational and early structural work at TX-1 suggests the project remains on track, which is critical for aligning future fuel availability with Xe-100 deployment timelines. A functioning domestic TRISO fuel facility could strengthen the company’s control over its supply chain, potentially improving margins and reducing reliance on foreign nuclear fuel sources, which is strategically relevant amid energy security and localization trends.

If TX-1 proceeds to commissioning and operation as planned, X-Energy could be well positioned within the advanced nuclear segment as both a reactor and fuel supplier. This vertical integration may enhance long-term revenue visibility and competitive positioning against peers that depend on third-party fuel providers. However, investors should remain mindful of execution risks typical of nuclear infrastructure projects, including regulatory, cost-overrun, and schedule risks, which could affect cash needs and the timing of any future revenue realization.