Filed by Spring Valley Acquisition Corp. III
pursuant to Rule 425 under the Securities Act
of 1933
and deemed filed pursuant to Rule 14a-12
under the Securities Exchange Act of 1934
Subject Company: Spring Valley Acquisition Corp.
III
Commission File No. 001-42822
Subject Company: General Fusion Inc.
Date: February 23, 2026
This filing relates to the proposed transactions pursuant to the terms
of that certain Business Combination Agreement, dated January 21, 2026 (the “Business Combination Agreement”), among Spring
Valley Acquisition Corp. III, an exempted company limited by shares incorporated under the Laws of the Cayman Islands (“SVAC”);
General Fusion Inc., a British Columbia limited company (“General Fusion” or the “Company”), and 1573562 B.C.
Ltd., a British Columbia limited company (“NewCo”), pursuant to which, among other things, (i) SVAC will continue from the
Cayman Islands to British Columbia, (ii) NewCo will amalgamate with and into General Fusion (the “Amalgamation”), with NewCo
surviving the Amalgamation as a wholly-owned subsidiary of SVAC, pursuant to an arrangement under the applicable provisions of the Business
Corporations Act (British Columbia) and the plan of arrangement attached as an exhibit to the Business Combination Agreement,
and (iii) SVAC will change its name to “General Fusion Group Ltd.”
On February 23, 2026, General Fusion posted the following communication
on its LinkedIn, X and Facebook accounts:
Our team will be on the ground at major
upcoming fusion energy and investor relations events, sharing our commercialization strategy, capital markets path, and the role of fusion
in the future clean energy mix!
Find us at:
| · | @ FusionX Group’s FusionX:Global (Munich, Germany, Feb
25-27) – On Feb 26, Chief Strategy Officer @ Megan Wilson joins for a fireside chat to share her two decades of capital raising
experience and sustaining momentum on the path to commercializing fusion energy |
| · | @ Fusion Industry Association Annual Policy Conference (Washington,
D.C., Mar 18-19) – On Mar 19, @ Megan Wilson joins FIA’s Behind the Headlines series with @ Spring Valley Acquisition Corp.
III CEO @ Chris Sorrells for a fireside chat following the company’s recently announced business combination with Spring Valley
to become the first publicly traded pure-play fusion company |
| · | 38th Annual Roth Conference (Dana Point, California, Mar
22-24) - Meet Senior VP, Finance @ Rob Crystal, and Investor Relations Manager @ Josh Nycholat at this annual conference for growth companies |
Learn more: General Fusion to Highlight Commercialization Path and Capital Markets Strategy at Upcoming
Global Fusion Industry and Investor Conferences | General Fusion
On February 23, 2026, the following press release was issued on
behalf of General Fusion:

General Fusion to Highlight Commercialization
Path and Capital Markets Strategy at Upcoming Global Fusion Industry and Investor Conferences
VANCOUVER, British Columbia – February 23, 2026
– General Fusion Inc. (“General Fusion” or the “Company”), a leader in the global race to
make commercial fusion energy a reality, today announced its participation in several prominent global conferences throughout February
and March. Company executives will highlight General Fusion’s commercialization strategy, capital markets path, and the role of
fusion in the future clean energy mix. The Company recently announced its plans to go public through a business combination (the
transactions contemplated by the business combination, collectively, the “Proposed Business Combination”) with Spring
Valley Acquisition Corp. III (NASDAQ: SVAC) (“SVAC”).
| · | General Fusion’s Chief Strategy Officer,
Megan Wilson, is attending FusionX:Global in Munich, Germany, February 25–27. She will join FusionX CEO and Co-Founder Stuart
Allen for a fireside chat on February 26 from 12:40–1:00 PM. |
| · | Megan Wilson will also attend the Fusion Industry
Association (FIA) Annual Policy Conference in Washington, D.C., March 18–19. She is taking part in the FIA’s “Behind
the Headlines” fireside chat series with SVAC’s Chairman and CEO, Chris Sorrells. |
| · | General Fusion’s Senior Vice President
of Finance, Rob Crystal, and Manager of Investor Relations, Josh Nycholat, are attending the 38th Annual Roth Conference in Dana
Point, California, March 22–24. |
If you are interested in arranging meetings with
General Fusion during any of these events, please contact investors@generalfusion.com.
Quick Facts:
| · | General Fusion’s Magnetized Target Fusion
(“MTF”) is designed to solve significant barriers to fusion energy, which comes at a critical time as demand for electricity
is surging and nations around the world race to commercialize fusion power. |
| · | As a technology, MTF is intended to achieve fusion
in a practical way, avoiding superconducting magnets and high-powered lasers, and enabling the use of existing materials for durable machines
that would produce cost-effective energy. |
| · | 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. |
| · | 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. |
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 www.generalfusion.com.
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 (NYSE: SMR), a leading U.S. small modular reactor (“SMR”)
technology company, and Spring Valley II has announced a pending merger with Eagle Energy Metals, 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 https://sv-ac.com.
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 to be described in the registration statement
on Form F-4 to be filed by SVAC with the SEC in connection with the Proposed Business Combination (the “Registration Statement”),
which will include a preliminary proxy statement/prospectus; 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 www.sec.gov, and which you are advised to review carefully.
Important Information for Investors and Shareholders
In connection with the Proposed Business Combination,
SVAC intends to file with the SEC the Registration Statement, which will include a prospectus with respect to SVAC’s securities
to be issued in connection with the Proposed Business Combination and a proxy statement to be distributed to SVAC’s shareholders
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 to be 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 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 will be 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 www.sec.gov.
In addition, the documents filed by SVAC may be obtained free of charge from SVAC’s website at https://sv-ac.com 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: investors@generalfusion.com.
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:
media@generalfusion.com
1-866-904-0995
***
Additional Information and Where to Find It
In connection with the Proposed Business Combination,
SVAC intends to file with the SEC the Registration Statement under the Securities Act of 1933, as amended (the “Securities Act”),
which will include a prospectus with respect to SVAC’s securities to be issued in connection with the Proposed Business Combination
and a proxy statement to be distributed to holders of SVAC’s shareholders 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 to be 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 and other matters to be described in the Registration Statement. 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 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 will be 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 www.sec.gov. In addition, the documents filed by SVAC may be obtained free of charge from SVAC’s website at www.sv-ac.com
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 or an exemption therefrom.
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 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 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 the Final Prospectus and the risks to be described in the Registration Statement; 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 www.sec.gov, and which you are advised to review carefully.