X-Energy, Inc. (NASDAQ: XE) and SGL Carbon announced a binding agreement on Aug. 03, 2026, to double the production capacity for medium-grain isotropic graphite (NBG-18), a critical long-lead material for X-energy’s Xe-100 high-temperature gas-cooled reactors. Under the deal, X-energy will invest up to $8 million in milestone-based payments to fund new facilities and equipment upgrades at SGL’s site in Chedde, France. This expansion directly supports X-energy’s execution of its 11+ GW commercial pipeline by securing a reliable supply chain for safety-critical components.

The investment enables SGL to produce graphite billets for up to 8 new Xe-100 reactors per year. Concurrently, SGL has agreed to expand U.S. capacity for machining these billets into graphite blocks, ensuring greater supply chain continuity. Full execution of the French facility upgrades is projected to double European manufacturing capacity for NBG-18 by 2030. The companies noted that additional capacity investments are under consideration across multiple regions to further debottleneck initial billet production.

Deal Structure and Capacity Impact

The agreement focuses on removing bottlenecks in the production of NBG-18, which is central to the construction of X-energy’s advanced nuclear reactors. The financial commitment is structured as milestone-based payments rather than an upfront lump sum, aligning capital expenditure with tangible progress in facility upgrades.

What the Numbers Show

The strategic alignment of upstream billet production in Europe with downstream machining capacity in the U.S. highlights a deliberate effort to mitigate single-point supply chain risks. By doubling European capacity specifically for NBG-18, X-energy addresses a known constraint in the deployment timeline for high-temperature gas-cooled reactors. The linkage between the $8 million investment and the output of 8 reactors per year establishes a clear unit economics framework for the supply chain expansion, suggesting that each reactor requires significant dedicated graphite infrastructure support.

X-Energy, Inc. (NASDAQ: XE) will report its second quarter 2026 financial results and operational highlights on Thursday, August 13, 2026. The Rockville, Maryland-based advanced nuclear reactor technology designer and nuclear fuel manufacturer plans to issue a press release before markets open. This announcement sets the timeline for investors to assess the company’s progress in developing its Xe-100 high-temperature gas-cooled reactor and TRISO-X particle fuel technologies.

The company will host a webcast and conference call at 8:00 a.m. ET to discuss the results. A live audio webcast of the conference call can be accessed on the "Events & Presentations" section of the Investor Relations page of the Company’s website by visiting https://investors.x-energy.com , along with the Company’s presentation materials. A replay of the webcast will be available on the website for at least one year following the event.

Key Dates and Access Details

About X-Energy

X-energy is a leading designer of advanced small modular nuclear reactors ("SMR") and fuel technology developed to establish a new standard in clean, safe, reliable energy. X-energy's intrinsically safe Xe-100 high-temperature gas-cooled reactor and TRISO-X particle fuel expand applications for nuclear technology, with commercial projects across grid, industrial, and AI sectors.

Together, X-energy's technology drives enhanced safety, lower cost, faster construction timelines, and scalable deployment when compared with other SMRs and conventional nuclear options. For more information, visit X-energy.com or connect with the company on X or LinkedIn.

Disclosure Information

Investors and others should note X-energy communicates with its investors and the public using its website, Investor Relations page and social media accounts (X or LinkedIn) as a means of disclosing material non-public information and for complying with its disclosure obligations under Regulation FD.