Form: 6-K

Report of foreign issuer [Rules 13a-16 and 15d-16]

April 23, 2026

Documents

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Exhibit 99.1

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Ardagh Metal Packaging S.A. Declares Quarterly Interim Dividend

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Luxembourg (April 23, 2026) - Ardagh Metal Packaging S.A. (NYSE: AMBP) announces that its board of directors has approved a quarterly interim dividend of $0.10 per ordinary share. This is payable on June 25, 2026 to shareholders of record on June 11, 2026.

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To view this release online and get more information about Ardagh Metal Packaging please visit:  https://www.ardaghmetalpackaging.com/investors  

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About Ardagh Metal Packaging

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Ardagh Metal Packaging (AMP) is a leading global supplier of sustainable and infinitely recyclable metal beverage cans to brand owners globally. An operating business of sustainable packaging business Ardagh Group, AMP is a leading industry player across Europe and the Americas with innovative production capabilities. AMP operates 23 production facilities in nine countries, employing approximately 6,500 people with sales of approximately $5.5 billion in 2025.

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Forward-Looking Statements

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This press release includes “forward-looking statements” within the meaning of Section 27A of the U.S. Securities Act and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. Forward-looking statements are subject to known and unknown risks and uncertainties, many of which may be beyond our control. We caution you that the forward-looking information presented in this press release is not a guarantee of future events, and that actual events may differ materially from those made in or suggested by the forward-looking information contained in this press release. Any forward-looking information presented herein is made only as of the date of this press release, and we do not undertake any obligation to update or revise any forward-looking information to reflect changes in assumptions, the occurrence of unanticipated events, or otherwise. This press release contains inside information for the purposes of Article 7 of Regulation (EU) No 596/2014. The person responsible for the release of this information on behalf of Ardagh Metal Packaging Finance plc and Ardagh Metal Packaging Finance USA LLC is Stephen Lyons, Investor Relations Director.

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Contacts

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Investors:

Email: stephen.lyons@ardaghgroup.com