Fusion Fuel Green PLC

The press release attached as Exhibit 99.1 hereto and the statements contained therein include “forward-looking statements” within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended, which statements involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or the Company’s future financial or operating performance. In some cases, you can identify these statements because they contain words such as “may,” “will,” “believes,” “expects,” “anticipates,” “estimates,” “projects,” “intends,” “should,” “seeks,” “future,” “continue,” “plan,” “target,” “predict,” “potential,” or the negative of such terms, or other comparable terminology that concern the Company’s expectations, strategy, plans, or intentions. Such forward-looking statements include, but are not limited to, statements regarding: the Company’s planned acquisition of Royal Uranium Inc., a company incorporated under the laws of British Columbia, Canada (“Royal Uranium”), and the expected benefits thereof, including the anticipated closing of the transaction and the expected enhancement of the Company’s strategic positioning and long-term asset value; the scope, timing, and results of exploration and development activities by third-party operators at properties underlying Royal Uranium’s royalty and other interests; the conversion of the preferred shares of $0.0001 nominal value each designated by the board of directors of the Company as Series A Convertible Preferred Shares on November 18, 2024 in accordance with the Articles of Association of the Company into ordinary shares and the conditions thereto, including the submission and clearance of an initial listing application with The Nasdaq Stock Market LLC (“Nasdaq”); the proposed change of the Company’s name to Fusion Elements plc; and the Company’s strategy to build a diversified energy platform and the anticipated benefits thereof. These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside the Company’s control, that could cause actual results or outcomes to differ materially from those discussed in the forward-looking statements, including, without limitation: the ability of the parties to the Share Exchange Agreement, dated February 18, 2026, between the Company and certain shareholders of Royal Uranium, to complete the acquisition of Royal Uranium pursuant to its terms; the Company’s ability to integrate Royal Uranium’s assets into its business; the realization of revenues from the assets of Royal Uranium, including its uranium and natural gas royalty and other interests, which may depend on, among other things, the commercial development of uranium deposits, the receipt and maintenance of exploration, mining, and environmental permits and approvals by the operators of the underlying properties, and market demand for uranium and natural gas as sources of energy; volatility in uranium and natural gas commodity prices, which directly affect the potential value of net smelter return and participation interests; the risk that operators of royalty-bearing or similar properties may delay, suspend, or abandon exploration or development activities due to insufficient funding, unfavorable economic conditions, technical challenges, or regulatory obstacles; the possibility that exploration activities may not result in the discovery of commercially viable mineral deposits or hydrocarbon reserves; the dependence of the Company on third-party operators over whom it has no operational control, including decisions regarding the pace, scope, and method of exploration and development; the risk that changes in mining, environmental, or energy laws and regulations in the jurisdictions where Royal Uranium’s royalty and other assets are located, including Canada, Colombia, and Argentina, may adversely affect the feasibility or economics of the underlying projects; political, economic, and social risks associated with operating in foreign jurisdictions, including currency controls, expropriation, nationalization, and changes in fiscal regimes; the risk that royalty and similar agreements may be subject to disputes regarding their scope, enforceability, or the calculation of permitted deductions from gross revenues; the ability of the Company to satisfy the conditions to conversion of the Series A Preferred Shares, including the submission and clearance of the initial listing application with Nasdaq; competition from existing or new offerings that may emerge; the Company’s ability to obtain sufficient funding to maintain operations and develop additional services and offerings; and the risks and uncertainties described under Item 3. “Key Information – D. Risk Factors” and elsewhere in the Company’s Annual Report on Form 20-F for the fiscal year ended December 31, 2025, filed with the SEC on May 7, 2026. The Company’s expectations and beliefs regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected. All subsequent written and oral forward-looking statements concerning the Company or other matters and attributable to the Company or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements above. The Company does not undertake any obligation to publicly update any of these forward-looking statements to reflect events or circumstances that may arise after the date hereof, except as required by law.

This Report on Form 6-K (other than Exhibit 99.1 hereto) is incorporated by reference into the Company’s registration statements

on Form F-3 (File 333-287226,333-289429,333-286198,333-286202,333-251990,333-264714,333-276880,333-293286, and 333-294414) and Form S-8 (File Nos.333-258543 and 333-291732) and the prospectuses thereof and any prospectus supplements or amendments thereto.