<img src="https://ml.globenewswire.com/Resource/Download/efc83053-ef99-465f-b083-7252087ae350?size=2" nborder="0" align="left" hspace="5" vspace="5" title="Holtec Nuclear Corporation Logo.jpg" alt="Holtec International"/>COVERT TOWNSHIP, Mich., Sept. 08, 2026 <a href="https://www.globenewswire.com" target="_blank">(GLOBE NEWSWIRE)</a> -- Holtec Nuclear Corporation (“Holtec” or the “Company”) is pleased to announce that Ukraine’s Joint Stock Company National Nuclear Energy Generating Company “Energoatom” has awarded a contract for the supply of an additional forty-one (41) systems for safe transport and storage of spent fuel for VVER reactors at Ukraine’s Khmelnitsky, Rivne, and South Ukraine Nuclear Power Plants. This agreement reaffirms the long-standing cooperation between Energoatom and Holtec that began more than 20 years ago. The contract was signed on August 26, 2026 by Energoatom Acting Chief Executive Officer Pavlo Kovtonyuk in Kyiv, and concurrently by Holtec CEO and Chairman of the Board Dr. Kris Singh in Camden, New Jersey.  Under the contract, Holtec will supply an additional 41 multi-purpose canister-based dry storage systems that will include Holtec’s proprietary technology. The contract supplements the 2015 restated contract under which cooperative efforts of Energoatom and Holtec have successfully deployed state-of-the-art storage and transport systems for Energoatom’s Russian-origin (VVER) nuclear reactors, which are characterized by proven defense-in-depth features against accidents and mishaps. Some of the major equipment types being used by Ukraine include the HI-STORM 190 vertical ventilated storage system, the HI-STAR 190 Universal Transport Cask, the HI-TRAC 190 Transfer Cask, and an array of ancillary equipment to load, dehydrate, and weld the double wall Multiple Purpose Canisters at each operating plant site. The dried and welded Double Wall Canisters have been safely transported in the HI-STAR 190 transport cask to the Central Storage Facility and placed in the HI-STORM 190 vertical ventilated systems for environmentally safe-storage. The high-capacity Double Wall Multi-Purpose Canisters and the heavily shielded transport cask HI-STAR 190 have become Ukraine’s workhorse to transport the country’s used fuel from its nine reactors to the nation’s consolidated interim storage facility. Although the Design Life of CSFSF is 100 years, the systems are designed for a service life that may extend beyond 100 years.  The Honorable Pavlo Kovtonyuk, Acting Chief Executive Officer, Energoatom, a veteran executive of nuclear energy, made the following statement after signing the contract, “The ongoing war has shown the vital importance for safe and reliable operations of Ukraine’s nuclear reactors. The damage to Ukraine’s energy infrastructure has necessitated Energoatom to provide almost 70% of the country’s electricity needs for energy security. Indeed, the reliable operation of Ukraine’s reactors is vital to ensure all essential aspects for the Nation’s defense and our economy. Safe, secure, and reliable storage and transport of spent fuel from Ukraine’s VVER reactors to the Central Spent Fuel Storage Facility are critically important for Ukraine’s nuclear energy industry and the continued supply of electricity to our citizens during the ongoing war. The additional supply of spent fuel storage systems from Holtec supports the reliable operation of Ukraine’s reactors and our continued ability to avoid approximately $200 million annually in costs which Energoatom would have had to spend on paying for the transportation and storage of spent fuel outside of Ukraine. We are grateful to Holtec for being a reliable partner to supply storage equipment during the challenging times and their belief in the importance of nuclear energy for the sustainable future and success of Ukraine.” Holtec’s CEO and Chairman of the Board Dr. Kris Singh reaffirmed Holtec’s support to Energoatom and stated “Ukraine has made history by taking full control of its used nuclear fuel as demonstrated by the country’s National Nuclear Operator, Energoatom, for successfully loading, transporting, and storing spent fuel from its operating reactors to the Central Spent Fuel Storage Facility. Ukraine’s ability to control and safely manage its used fuel on its own territory is a strategic need as well as a matter of financial prudence for Ukraine in light of the fact that the in-country fuel storage facility is saving Energoatom approximately $200 million each year through avoided payments for transportation and storage of spent fuel outside of Ukraine. We are grateful to the Honorable Pavlo Kovtonyuk and Energoatom for the confidence in our company by awarding a new contract for supply of additional spent fuel storage systems. We will stand shoulder to shoulder with Ukraine and are committed to helping the Ukrainian nation rebuild its energy infrastructure after the war has ended. Holtec also has the distinct honor and privilege to work with Energoatom for deployment of our SMR-300 Advanced Nuclear Reactors in Ukraine.”  Cautionary Statement Regarding Forward-Looking Statements This release contains forward-looking statements, including statements regarding Holtec’s expected supply of additional spent fuel storage systems to Energoatom, the expected service life of Holtec’s spent fuel storage systems, Holtec’s commitment to helping Ukraine rebuild its energy infrastructure and the potential future deployment of Holtec’s SMR-300. Forward-looking statements involve risks, contingencies, and uncertainties, which are difficult to predict and many of which are beyond our control. The forward-looking statements in this release speak only as of the date of this release. We undertake no obligation to update these statements unless required by law, and we caution you not to place undue reliance on them. About Holtec Nuclear Corporation Holtec is a U.S.-headquartered, multinational technology company focused on clean energy, with its principal business centered on nuclear power generation and an expanding presence in adjacent clean energy generation solutions and long-duration energy storage. The Company is the owner/developer of the SMR-300 advanced small modular reactor featuring passive safety systems, and currently expects the first two units to be deployed at the Company-owned Palisades site in Michigan. Holtec is also refurbishing the Palisades nuclear power plant, which would be the first commercial nuclear reactor in the United States to be repowered after permanent shutdown.  Holtec is the NRC-authorized operator for the Palisades plant. The Company’s business profile is distinguished by its ownership of over 200 granted patents, a substantial portfolio of proprietary technologies and trade secrets, three U.S.-based manufacturing facilities for nuclear fabrication and operations on five continents. The Company has provided products and services to a client base of more than 150 commercial nuclear reactors worldwide. Holtec's technical capabilities include reactor design, reactor operations, engineering, licensing, manufacturing, construction, commissioning, and decommissioning services. As such, Holtec believes that it is well-positioned to help catalyze the growth of the nuclear power industry in the U.S. and around the world. The Company is also expanding its activities in solar energy and long-duration energy storage technologies intended to enhance renewable energy reliability and complement its SMR-300 product line. Contact: Patrick O’Brien, Director of Government Affairs and Communications Phone: (508) 494-4254 | Email: p.obrien@holtec.com ICR Holtec@icrinc.com <img alt="" src='https://ml.globenewswire.com/media/ZDgyZjQ0ZmEtNjdlMi00NjM1LTk3OTgtODNkYjgxOGQ2NGJhLTEzMjE0MzctMjAyNi0wOS0wOC1lbg==/tiny/Holtec-International.png' referrerpolicy='no-referrer-when-downgrade' />

Holtec Nuclear Corporation Awarded Contract to Continue Supply of Additional Spent Fuel Storage Systems for Ukraine VVER Reactors

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