What Standard Nuclear (STDN) Said on Its Q3 Earnings Call

Key Points

• Revenue and contracted commitments grew: Third-quarter revenue rose to $6 million from $900,000 a year earlier, while total backlog reached $577.2 million. Most backlog is customer purchase options; binding funded backlog was $119.6 million.
• Radiant and Antares advanced to fuel supply agreements, including multi-year supply commitments, while six other reactor developers remained in fuel development agreements.
• Facility launch timing slipped: Standard Nuclear now targets DOE authorization for its Tennessee and Idaho facilities in February 2027, later than its prior end-of-2026 target. Gross margin narrowed to about 30% as production costs increased; the company ended September with $223.1 million in cash and no debt.

Standard Nuclear NYSE: STDN reported rising third-quarter revenue and a jump in contracted backlog as two reactor developers moved to fuel supply agreements, while pushing its target for starting operations at two new facilities to February 2027.

The TRISO nuclear fuel manufacturer reported revenue of $6 million for the quarter ended Sept. 30, up from $4.7 million in the second quarter and $900,000 a year earlier. Its net loss was $13.1 million, or $0.10 per share.

Total contract backlog rose to $577.2 million from $241.5 million at the end of June. However, most of the September figure consisted of customer purchase options rather than firm orders.

Backlog grows as customers sign supply agreements

Funded backlog, which Chief Financial Officer Kevin Harrill said represents binding commitments with firm delivery obligations, rose to $119.6 million from $61.9 million at the end of June. Purchase options under executed contracts totaled $443.5 million, while nonbinding, unfunded backlog was $14.1 million.

Harrill said purchase options are at customers’ discretion and are not included in the financial statements until exercised. The company reported $115.2 million in remaining performance obligations, a GAAP measure of contracted revenue still to be recognized, and expects to recognize about $41.4 million of that amount over the next 12 months.

During the quarter, Radiant and Antares moved from fuel development agreements to fuel supply agreements. Six other commercial reactor developers remained under fuel development agreements, according to management.

Standard Nuclear completed delivery of the balance of Radiant’s Kaleidos reactor core during the quarter, following an initial shipment in June. President and Chief Executive Officer Kurt Terrani said Radiant’s definitive supply agreement covers multiple metric tons of fuel through 2031. He said the Antares agreement includes a firm commitment for one metric ton of HALEU TRISO fuel and customer options for up to seven additional metric tons.

Terrani told analysts that a majority of the company’s existing fuel supply agreements support Project JANUS, a government program for deploying microreactors at U.S. military installations.

Qualified pipeline, which represents vetted but uncontracted opportunities, stood at $844.7 million, down from $986.3 million at the end of June. Harrill attributed the decline to conversion into executed contracts and said the pipeline had rebuilt from approximately $696 million in late August. He said the increase since August came from a number of customers.

Facility authorization target shifts

Standard Nuclear is targeting Department of Energy authorization to operate its Tennessee and Idaho facilities in February 2027. Asked about the timing, Terrani acknowledged that the company had previously projected the end of the fourth quarter of 2026.

Terrani said construction was substantially complete, long-lead equipment had been procured and module installation was ongoing. The company submitted its final safety analysis for the Tennessee site on Nov. 6 and expects to submit the Idaho analysis shortly. DOE review and an operational readiness review remain before authorization.

At the end of September, installed module throughput capacity available for commercial production was 0.5 metric tons per year, all at the existing SN-0 operation. The two new sites are each intended to start at up to one metric ton annually and have building capacity for 2.5 metric tons each as modules are added.

Separately, Standard Nuclear’s joint venture with Framatome plans to begin production in 2027 at Framatome’s Nuclear Regulatory Commission-licensed site in Richland, Washington. Standard Nuclear owns two-thirds of the venture, which has initial planned capacity of approximately one metric ton annually.

Terrani also said Urenco USA had produced LEU+ material for Standard Nuclear, which plans to receive it at Richland for use as fuel feedstock. He told analysts he did not currently see feedstock availability as a bottleneck, citing government HALEU allocations, commercial enrichment investment and potential alternatives.

Margins narrow as production costs rise

Third-quarter gross profit was $1.8 million, or approximately 30% of revenue, compared with a 67% gross margin in the second quarter. Excluding share-based compensation, adjusted gross margin was approximately 40%.

Harrill said cost of revenue increased as the company ran SN-0 at a commercial production rate for the full quarter to complete the Radiant core. He cautioned that neither the second nor third quarter represented a run rate for the early commercial production periods.

General and administrative expenses rose to $15.5 million from $5.5 million in the second quarter, including $9.5 million of share-based compensation. The company reported an operating loss of $15.1 million and an adjusted operating loss of $4.8 million, excluding share-based compensation.

Standard Nuclear ended September with $223.1 million in cash and cash equivalents and no debt. Harrill said the company does not provide financial guidance and will instead report progress against its operational milestones.

About Standard Nuclear (NYSE:STDN)

Standard Nuclear is a U.S. advanced nuclear fuel company focused on producing tri-structural isotropic (TRISO) fuel. TRISO fuel uses uranium-bearing particles coated in layers of ceramic and carbon materials, and is designed for use in certain advanced reactor designs. The company acquired fuel-related assets from Ultra Safe Nuclear Corporation, including a manufacturing facility in Oak Ridge, Tennessee. Standard Nuclear is working to develop and scale domestic production of TRISO fuel for advanced reactor developers.

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