<img src="https://ml.globenewswire.com/Resource/Download/d492e1bd-35f4-4409-a2c0-b24f5f30ac78?size=2" nborder="0" align="left" hspace="5" vspace="5" title="generalfusion.png" alt="General Fusion"/>VANCOUVER, British Columbia, June 01, 2026 (GLOBE NEWSWIRE) -- General Fusion Inc. (“General Fusion” or the “Company”), a leader in the global race to commercialize fusion energy, today announced that members of its leadership team will participate in several major investor and industry conferences taking place in June. This announcement comes as the Company prepares to go public through its previously announced business combination (the transactions contemplated by the business combination, collectively, the “Proposed Business Combination”) with Spring Valley Acquisition Corp. III (NASDAQ: SVAC) (“SVAC”). Conference Details <ul type="disc"><li style="margin-bottom:8pt; text-align:justify;">General Fusion plans to participate in Stifel’s Ninth Annual Boston Cross Sector 1x1 Conference, taking place June 2–3, 2026, in Boston, MA. </li><li style="margin-bottom:8pt; text-align:justify;">Chief Strategy Officer Megan Wilson is expected to speak at FusionX:Americas, taking place June 9–11, 2026, in Boston, MA. Wilson will participate in a fireside chat with George Gianarikas, Managing Director at Canaccord Genuity, on June 9 at 5:00 p.m. ET. The discussion will explore the evolving role of public markets in advancing fusion energy development amid growing global demand for clean energy.</li></ul> <ul type="disc"><li style="margin-bottom:8pt; text-align:justify;">General Fusion also plans to attend the 16th Annual ROTH London Conference in London, UK, from June 16–18, 2026. </li></ul> If you are interested in arranging meetings with General Fusion during any of these events, please contact <a href="https://www.globenewswire.com/Tracker?data=NlnEb8hyRVs363tB-Ukd3Abzonjzxe-3xcWYJPOEdCLX8Lw0TrSVOW52M0n50nH7T-QCpq8ZZJzdiTVWCtnZISeUCYSPqBq8JQvvYYiJ-nCEoD-sTgZZ5xLc4pdqug3P" rel="nofollow" target="_blank" title="investors@generalfusion.com">investors@generalfusion.com</a>. Quick Facts: <ul type="disc"><li style="margin-bottom:8pt; text-align:justify;">General Fusion’s Magnetized Target Fusion (“MTF”) is designed to solve significant barriers to commercializing fusion energy at a time when electricity demand is surging, and nations around the world are racing to commercialize fusion power.</li><li style="margin-bottom:8pt; text-align:justify;">As a technology, MTF aims to achieve fusion in a practical way, avoiding superconducting magnets and high-powered lasers, while enabling the use of existing materials for durable machines that would produce cost-effective energy. </li><li style="margin-bottom:8pt; text-align:justify;">In early 2025, General Fusion announced that it had designed, built, and begun operating its world-first Lawson Machine 26 (“LM26”) fusion demonstration machine in under two years. LM26 is the first MTF demonstration machine to be built at a commercially relevant scale. It mechanically compresses plasma with a lithium liner at 50% commercial-scale diameter.</li><li style="margin-bottom:8pt; text-align:justify;">LM26 aims to achieve key fusion technical milestones: plasma heating to 1 keV (10 million degrees Celsius), then 10 keV (100 million degrees Celsius), and ultimately the Lawson criterion, the combination of fusion parameters that can produce net fusion energy in the plasma. </li></ul> About General Fusion General Fusion is pursuing a fast and practical approach to commercial fusion energy and is headquartered in Vancouver, Canada. The Company was established in 2002 and is funded by a global syndicate of leading energy venture capital firms, industry leaders, and technology pioneers. Learn more at <a href="https://www.globenewswire.com/Tracker?data=YSrVAbfbX63rWPFqrKPaG2gFlny1caibewmN-Oz78-tsjjQJ8MuqiJWwmCHCgMiAAYrDX8g-aQ5nDx6X1XUy8jU66d-_7QVnHO2XTshPUtk=" rel="nofollow" target="_blank" title="">www.generalfusion.com</a>. General Fusion announced in January 2026 that it plans to go public through the Proposed Business Combination with Spring Valley Acquisition Corp. III (NASDAQ: SVAC). About Spring Valley Acquisition Corp. III Spring Valley Acquisition Corp. III is a part of a family of investment vehicles formed for the purpose of acquiring or merging with a business focused on the Power infrastructure and Decarbonization sectors. Over the past 5 years, Spring Valley has raised $920 million in four IPOs. Spring Valley I successfully completed its business combination with NuScale Power, a leading U.S. small modular reactor (“SMR”) technology company, and Spring Valley II successfully completed its business combination with Eagle Nuclear Energy Corp., a next-generation nuclear energy company with rights to the largest open pit-constrained measured and indicated uranium deposit in the United States. SVAC maintains a corporate website at <a href="https://www.globenewswire.com/Tracker?data=ZJ3QFjO9AYaUWR67WgYpVRwFsA56a85RLMh5cy1lcg8dCc9jW8ITJGyLzgE9HhA7PDSouWF1gSqSlDnfMF4mDw==" rel="nofollow" target="_blank" title="">https://sv-ac.com</a>. Cautionary Note Regarding Forward-Looking Statements Certain statements included in this document are not historical facts but are forward-looking statements for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts contained in this document are forward-looking statements. Any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are also forward-looking statements. In some cases, you can identify forward-looking statements by words such as “estimate,” “plan,” “project,” “forecast,” “intend,” “expect,” “anticipate,” “believe,” “seek,” “strategy,” “future,” “opportunity,” “may,” “target,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” “preliminary,” or similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements include, without limitation, SVAC’s, General Fusion’s, or their respective management teams’ expectations concerning the Proposed Business Combination and expected benefits or timing thereof; the outlook for General Fusion’s business, including its ability to commercialize MTF or any other fusion technology on its expected timeline or at all; statements regarding the current and expected results of General Fusion’s LM26 program; the ability to execute General Fusion’s strategies, including on any expected timeline or anticipated cost basis; projected and estimated financial performance; anticipated industry trends; future capital expenditures; government regulation of fusion energy; and environmental risks; as well as any information concerning possible or assumed future results of operations of General Fusion. The forward-looking statements are based on the current expectations of the respective management teams of SVAC and General Fusion, as applicable, and are inherently subject to uncertainties and changes in circumstance and their potential effects. There can be no assurance that future developments will be those that have been anticipated. These forward-looking statements involve a number of risks, uncertainties or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, (i) the risk that the Proposed Business Combination may not be completed in a timely manner or at all, which may adversely affect the price of SVAC’s securities; (ii) the failure to satisfy the conditions to the consummation of the Proposed Business Combination, including the adoption of the business combination agreement, dated January 21, 2026, among General Fusion, SVAC, and the other party thereto (the “Business Combination Agreement”) by the shareholders of SVAC and the receipt of regulatory approvals; (iii) market risks; (iv) the occurrence of any event, change or other circumstance that could give rise to the termination of the Business Combination Agreement; (v) the effect of the announcement or pendency of the Proposed Business Combination on General Fusion’s business relationships, performance, and business generally; (vi) risks that the Proposed Business Combination disrupts current plans of General Fusion and potential difficulties in its employee retention as a result of the Proposed Business Combination; (vii) the outcome of any legal proceedings that may be instituted against General Fusion or SVAC related to the Business Combination Agreement or the Proposed Business Combination; (viii) failure to realize the anticipated benefits of the Proposed Business Combination; (ix) the inability to maintain the listing of SVAC’s securities or to meet listing requirements and maintain the listing of the combined company’s securities on Nasdaq; (x) the risk that the Proposed Business Combination may not be completed by SVAC’s business combination deadline and the potential failure to obtain an extension of the business combination deadline if sought by SVAC; (xi) the risk that the price of the combined company’s securities may be volatile due to a variety of factors, including changes in laws, regulations, technologies, natural disasters, national security tensions, and macro-economic and social environments affecting its business; (xii) laws and regulations governing General Fusion’s research and development activities, and changes in such laws and regulations; (xiii) any failure to commercialize MTF on the expected timeline or at all, including any failure to achieve the objectives of the LM26 program; (xiv) environmental regulations and legislation; (xv) the effects of climate change, extreme weather events, water scarcity, and seismic events, and the effectiveness of strategies to deal with these issues; (xvi) fluctuations in currency markets; (xvii) General Fusion’s ability to complete and successfully integrate any future acquisitions; (xviii) increased competition in the fusion industry; (xix) limited supply of materials and supply chain disruptions; and (xx) the risk that the proposed private placement of convertible preferred shares and warrants by General Fusion (the “PIPE Financing”) may not be completed, or that other capital needed by the combined company may not be raised on favorable terms, or at all, including as a result of the restrictions agreed to in connection with the PIPE Financing. The foregoing list is not exhaustive, and there may be additional risks that neither SVAC nor General Fusion presently know or that SVAC and General Fusion currently believe are immaterial. You should carefully consider the foregoing factors, any other factors discussed in this document and the other risks and uncertainties described in the “Risk Factors” section of SVAC’s final prospectus for its initial public offering, which was filed with the SEC on September 4, 2025 (the “Final Prospectus”); the risks described in the joint registration statement on Form F-4 filed by General Fusion and SVAC, as amended (the “Registration Statement”), which includes a preliminary proxy statement/prospectus, or to be described in any amendment or supplement thereto; and those discussed and identified in filings made with the SEC by SVAC from time to time. General Fusion and SVAC caution you against placing undue reliance on forward-looking statements, which reflect current beliefs and are based on information currently available as of the date a forward-looking statement is made. Forward-looking statements set forth in this document speak only as of the date of this document. Neither General Fusion nor SVAC undertakes any obligation to revise forward-looking statements to reflect future events, changes in circumstances, or changes in beliefs. In the event that any forward-looking statement is updated, no inference should be made that General Fusion or SVAC will make additional updates with respect to that statement, related matters, or any other forward-looking statements. Any corrections or revisions and other important assumptions and factors that could cause actual results to differ materially from forward-looking statements, including discussions of significant risk factors, may appear, up to the consummation of the Proposed Business Combination, in SVAC’s public filings with the SEC, which are or will be (as applicable) accessible at <a href="https://www.globenewswire.com/Tracker?data=6A0wS-HDezf-ZIIJ1X897nJzVD1diirFEMwY7Z0KlNf7B7PrOOfxKJjRr07YabQms4jDuORbppr9fBZE3glHWg==" rel="nofollow" target="_blank" title="">www.sec.gov</a>, and which you are advised to review carefully. Important Information for Investors and Shareholders In connection with the Proposed Business Combination, General Fusion and SVAC filed with the SEC the Registration Statement, which includes a preliminary prospectus with respect to SVAC’s securities to be issued in connection with the Proposed Business Combination and a preliminary proxy statement in connection with SVAC’s solicitation of proxies for the vote by SVAC’s shareholders with respect to the Proposed Business Combination and other matters described in the Registration Statement (the “Proxy Statement”). After the SEC declares the Registration Statement effective, SVAC plans to file the definitive Proxy Statement with the SEC and to mail copies to SVAC’s shareholders as of a record date to be established for voting on the Proposed Business Combination. This document does not contain all the information that should be considered concerning the Proposed Business Combination and is not a substitute for the Registration Statement, Proxy Statement or for any other document that SVAC has filed or may file with the SEC. Before making any investment or voting decision, investors and security holders of SVAC and General Fusion are urged to read the Registration Statement and the Proxy Statement, and any amendments or supplements thereto, as well as all other relevant materials filed or that will be filed with the SEC in connection with the Proposed Business Combination as they become available because they will contain important information about General Fusion, SVAC and the Proposed Business Combination. Investors and security holders are able to obtain free copies of the Registration Statement, the Proxy Statement and all other relevant documents filed or that will be filed with the SEC by SVAC through the website maintained by the SEC at <a href="https://www.globenewswire.com/Tracker?data=6A0wS-HDezf-ZIIJ1X897jGQDry08UEtBZGBVilLEeLu63D6O6wuo0snXe-SKvaOfcr-iSRyr8zQT58xgmmKOw==" rel="nofollow" target="_blank" title="">www.sec.gov</a>. In addition, the documents filed by SVAC may be obtained free of charge from SVAC’s website at <a href="https://www.globenewswire.com/Tracker?data=ZJ3QFjO9AYaUWR67WgYpVURRmF7m8gfgBTGSEgF4l5I4513FgvyLcXv_pl01PGPY8KjQIDFBDkzSPW6D_COKPg==" rel="nofollow" target="_blank" title="">https://sv-ac.com</a> or by directing a request to Spring Valley Acquisition Corp. III, Attn: Corporate Secretary, 2100 McKinney Avenue, Suite 1675, Dallas, Texas 75201. The information contained on, or that may be accessed through, the websites referenced in this document is not incorporated by reference into, and is not a part of, this document. Participants in the Solicitation General Fusion, SVAC and their respective directors, executive officers and other members of management and employees may, under the rules of the SEC, be deemed to be participants in the solicitations of proxies from SVAC’s shareholders in connection with the Proposed Business Combination. For more information about the names, affiliations and interests of SVAC’s directors and executive officers, please refer to the Final Prospectus and the Registration Statement, Proxy Statement and other relevant materials filed or to be filed with the SEC in connection with the Proposed Business Combination when they become available. Additional information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, which may, in some cases, be different than those of SVAC’s shareholders generally, will be included in the Registration Statement and the Proxy Statement, when they become available. Shareholders, potential investors and other interested persons should read the Registration Statement and the Proxy Statement carefully, when they become available, before making any voting or investment decisions. You may obtain free copies of these documents from the sources indicated above. No Offer or Solicitation This document shall not constitute a “solicitation” as defined in Section 14 of the Securities Exchange Act of 1934, as amended. This document shall not constitute an offer to sell or exchange, the solicitation of an offer to buy or a recommendation to purchase, any securities, or a solicitation of any vote, consent or approval, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in which such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. No offering of securities in the Proposed Business Combination shall be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, as amended, or an exemption therefrom. Investor Relations Contact: You can contact General Fusion’s Investor Relations team by email at: <a href="https://www.globenewswire.com/Tracker?data=NlnEb8hyRVs363tB-Ukd3Abzonjzxe-3xcWYJPOEdCJ7sDz2VUoAS_befLlAgLE_4DCS2HPLIqCdF4sMxqdPMv81uerALbu2NnQg6Qm-WkNR-j2O3H3zoFbU-HfOgM7f" rel="nofollow" target="_blank" title="">investors@generalfusion.com</a>. If you are based in North America, you may also leave a toll-free voicemail at +1 (833) 717-1519. Callers outside North America can reach us at +1 (236) 253-6968. Media Relations Contact: <a href="https://www.globenewswire.com/Tracker?data=LvVwi54WzkYjQCJmKUuBCNug0_HvC24ViJ3L4KK9bdYOScxpPC3qRzDH5XdvzlBREIk5KOEtysM2uQ0q5Nh6BWXo7BTs1v3l-da3AmX1eXwTyIrB1Rt9GzOqhRHuHdmA" rel="nofollow" target="_blank" title="">media@generalfusion.com</a> 1-866-904-0995 <img alt="" src='https://ml.globenewswire.com/media/NjIwYjQzMDctYjQyYS00OTE0LTg4NTAtOTRhMDdiNGU3MzdkLTEyMjI5MzItMjAyNi0wNi0wMS1lbg==/tiny/General-Fusion.png' referrerpolicy='no-referrer-when-downgrade' />

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