Fusion Fuel (NASDAQ: HTOO) sets May 27 investor update and June Extraordinary General Meeting

Rhea-AI Filing Summary

Fusion Fuel Green PLC plans to release an investor update video and presentation on May 27, 2026, giving a strategic update on recent progress, operational priorities, and key milestones for the rest of 2026. Management will also discuss its previously announced agreement to acquire up to 100% of Royal Uranium Inc. and broader market opportunities as it builds a diversified energy platform.

Investors can submit questions by May 19, 2026, with materials to be posted on the company’s website. Fusion Fuel also expects to hold an Extraordinary General Meeting in the first half of June to vote on certain matters, with details to be provided later. The company highlights multiple risks that could cause actual results to differ from these forward-looking plans.

Key Figures

Investor update date: May 27, 2026 Question submission deadline: May 19, 2026 Extraordinary General Meeting timing: First half of June 2026 +1 more

4 metrics

Investor update date May 27, 2026 Planned release of investor update video and presentation

Question submission deadline May 19, 2026 Deadline for investors to email questions to IR

Extraordinary General Meeting timing First half of June 2026 Expected timing for shareholder meeting

Royal Uranium equity stake Up to 100% of equity Previously announced planned acquisition of Royal Uranium Inc.

Key Terms

Extraordinary General Meeting, forward-looking statements, diversified energy platform, green hydrogen solutions, +1 more

5 terms

Extraordinary General Meeting regulatory

"The Company also expects to hold an Extraordinary General Meeting during the first half of June"

forward-looking statements regulatory

"This press release contains “forward-looking statements” within the meaning of Section 27A"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

diversified energy platform financial

"the Company’s strategy of building a diversified energy platform and the anticipated benefits thereof"

green hydrogen solutions financial

"provides integrated energy engineering, distribution, and green hydrogen solutions through its Al Shola Gas, BrightHy Solutions, and BioSteam Energy platforms"

liquified petroleum gas financial

"adverse changes in commodity prices, including uranium, natural gas, and liquified petroleum gas"

A mix of light hydrocarbons (mainly propane and butane) that is compressed into liquid for storage and transport, commonly called LPG. It behaves like bottled fuel you might use for a grill or heater—easy to move and burn—and is a widely traded energy product and industrial feedstock. Investors care because supply, storage, transport costs, and seasonal demand swings directly affect energy company revenue, commodity prices, and costs for industries and households.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of: May, 2026.

Commission File Number: 001-39789

Fusion Fuel Green PLC

(Translation of registrant’s name into English)

9 Pembroke Street Upper

Dublin D02 KR83

Ireland

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

On May 12, 2026, Fusion Fuel Green PLC, an Irish public limited company (the “Company”), issued a press release announcing that it will release an investor update video  and presentation on May 27, 2026. The press release also stated that the Company expects to hold an Extraordinary General Meeting during the first half of June and plans to provide additional details regarding the matters to be voted. A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 6-K.

Forward-Looking Statements

The press release attached as Exhibit 99.1 hereto contains “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. Forward-looking statements relating to expectations about future results or events are based upon information available to the Company as of today’s date and are not guarantees of the future performance of the Company, and actual results may vary materially from the results and expectations discussed. Such forward-looking statements include, but are not limited to, statements regarding: the planned release of the Company’s investor update video and presentation on May 27, 2026, and the strategic update to be provided therein; the Company’s strategy of building a diversified energy platform and the anticipated benefits thereof; the expected completion and benefits of the planned transaction with respect to Royal Uranium; the planned Extraordinary General Meeting and the matters to be voted on therein; the anticipated contributions of the Company’s operating subsidiaries to the Company’s operations and growth; the Company’s operational priorities and key milestones expected throughout the remainder of 2026; and the Company’s ability to identify and capitalize on market opportunities. 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, including, without limitation, the risk that the anticipated transaction with respect to Royal Uranium may not be completed on anticipated terms or at all; the risk that the matters to be voted on at the Extraordinary General Meeting may not receive shareholder approval; the Company’s ability to successfully integrate acquired businesses and realize anticipated synergies; adverse changes in commodity prices, including uranium, natural gas, and liquified petroleum gas; the Company’s ability to secure additional financing on favorable terms; risks related to operating in multiple jurisdictions, including regulatory, political, and currency risks; changes in applicable laws or regulations, including those related to energy, environmental, and securities matters; the Company’s ability to attract and retain customers and execute on its commercial pipeline; risks associated with the development and commercialization of hydrogen and biomass technologies; general economic and market conditions, including the impact of inflation, interest rates, and geopolitical instability; 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 filed with the U.S. Securities and Exchange Commission (the “SEC”) on May 7, 2026, and other filings with the SEC. Should any of these risks or uncertainties materialize or should the underlying assumptions about the Company’s business and the commercial markets in which the Company operates prove incorrect, actual results may vary materially from those described as anticipated, estimated or expected. 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.

Exhibit No.		Description
99.1		Press Release dated May 12, 2026

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Fusion Fuel Green PLC
	(Registrant)
Date: May 12, 2026	/s/ Frederico Figueira de Chaves
	Frederico Figueira de Chaves
	Chief Executive Officer, Interim Chief Financial Officer and Chief Strategy Officer

Exhibit 99.1

Fusion Fuel to Release Investor Update Video and Presentation Highlighting Strategic Progress and Key Milestones for the Year Ahead

Dublin, May 12, 2026 (GLOBE NEWSWIRE) — Fusion Fuel Green PLC (Nasdaq: HTOO) (“Fusion Fuel” or the “Company”), a leading provider of full-service energy engineering, advisory, and utility solutions, today announced that it will release an investor update video and presentation on May 27, 2026.

The presentation will provide shareholders with a strategic update on the Company’s recent progress, operational priorities, and key milestones expected throughout the remainder of 2026. Management will discuss ongoing business initiatives, the Company’s previously-announced agreement to acquire up to 100% of the equity of Royal Uranium Inc. (“Royal Uranium”), market opportunities, and the Company’s strategy of building a diversified energy platform.

Investors are encouraged to submit questions in advance to IR@fusion-fuel.eu by May 19, 2026.

The investor presentation and accompanying materials will be made available on the Company’s website at www.fusion-fuel.eu and on the investor relations page of the Company’s website at www.fusion-fuel.eu/investors-data-room/finance-and-filings on May 27, 2026.

The Company also expects to hold an Extraordinary General Meeting during the first half of June and plans to provide further information regarding the matters to be voted on in the near future.

About Fusion Fuel Green PLC

Fusion Fuel Green PLC (NASDAQ: HTOO) provides integrated energy engineering, distribution, and green hydrogen solutions through its Al Shola Gas, BrightHy Solutions, and BioSteam Energy platforms. With operations spanning LPG supply to hydrogen and bio-steam solutions, the Company supports decarbonization across industrial, residential, and commercial sectors. For more information, please visit www.fusion-fuel.eu.

Forward-Looking Statements

This press release contains “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. Forward-looking statements relating to expectations about future results or events are based upon information available to the Company as of today’s date and are not guarantees of the future performance of the Company, and actual results may vary materially from the results and expectations discussed. Such forward-looking statements include, but are not limited to, statements regarding: the planned release of the Company’s investor update video and presentation on May 27, 2026, and the strategic update to be provided therein; the Company’s strategy of building a diversified energy platform and the anticipated benefits thereof; the expected completion and benefits of the planned transaction with respect to Royal Uranium; the planned Extraordinary General Meeting and the matters to be voted on therein; the anticipated contributions of the Company’s operating subsidiaries to the Company’s operations and growth; the Company’s operational priorities and key milestones expected throughout the remainder of 2026; and the Company’s ability to identify and capitalize on market opportunities. 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, including, without limitation, the risk that the anticipated transaction with respect to Royal Uranium may not be completed on anticipated terms or at all; the risk that the matters to be voted on at the Extraordinary General Meeting may not receive shareholder approval; the Company’s ability to successfully integrate acquired businesses and realize anticipated synergies; adverse changes in commodity prices, including uranium, natural gas, and liquified petroleum gas; the Company’s ability to secure additional financing on favorable terms; risks related to operating in multiple jurisdictions, including regulatory, political, and currency risks; changes in applicable laws or regulations, including those related to energy, environmental, and securities matters; the Company’s ability to attract and retain customers and execute on its commercial pipeline; risks associated with the development and commercialization of hydrogen and biomass technologies; general economic and market conditions, including the impact of inflation, interest rates, and geopolitical instability; 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 filed with the U.S. Securities and Exchange Commission (the “SEC”) on May 7, 2026, and other filings with the SEC. Should any of these risks or uncertainties materialize or should the underlying assumptions about the Company’s business and the commercial markets in which the Company operates prove incorrect, actual results may vary materially from those described as anticipated, estimated or expected. 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.

Investor Relations Contact:

ir@fusion-fuel.eu

www.fusion-fuel.eu

FAQ

What did Fusion Fuel Green PLC (HTOO) announce in its latest 6-K?

Fusion Fuel Green PLC announced plans to release an investor update video and presentation on May 27, 2026, covering strategy, operational priorities, and 2026 milestones, and flagged an upcoming Extraordinary General Meeting in the first half of June.

When will Fusion Fuel (HTOO) release its 2026 investor update presentation?

Fusion Fuel plans to release its investor update video and presentation on May 27, 2026. The materials will be available on the company’s main website and its investor relations data room on the same date for shareholders and other stakeholders.

How can Fusion Fuel Green (HTOO) investors submit questions for the update?

Investors are encouraged to submit questions by email to IR@fusion-fuel.eu by May 19, 2026. Management intends to address these questions as part of the investor update video and presentation discussing strategy and key milestones for 2026.

What is the planned Extraordinary General Meeting mentioned by Fusion Fuel (HTOO)?

Fusion Fuel expects to hold an Extraordinary General Meeting during the first half of June. The company plans to provide more details soon regarding the matters to be voted on, which will require shareholder consideration and formal approval.

What role does the Royal Uranium acquisition play in Fusion Fuel’s (HTOO) plans?

Fusion Fuel’s update will cover its agreement to acquire up to 100% of Royal Uranium Inc. The company describes this as part of building a diversified energy platform, though it cautions the transaction may not be completed on anticipated terms or at all.

What risks does Fusion Fuel (HTOO) highlight around its forward-looking statements?

Fusion Fuel cites risks including possible non-completion of the Royal Uranium transaction, failure to secure shareholder approval at the Extraordinary General Meeting, commodity price changes, financing challenges, regulatory shifts, and integration and technology commercialization risks.

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EX-99.1 12.5 KB