Notice of AGM and Posting of Annual Report

Public Policy Holding Company, Inc.

("PPHC", the "Group" or the "Company")

Notice of AGM and Posting of Annual Report

Public Policy Holding Company, Inc., (Nasdaq: PPHC) (AIM: PPHC) a leading global strategic communications provider offering a comprehensive range of advisory services in the areas of Government Relations, Public Affairs and Corporate Communications, announces that the Company's Annual Report for the year ended 31 December 2025 containing the notice of AGM was filed and published on the PPHC website https://investors.pphcompany.com on 17 April 2026, and will be posted to shareholders shortly, in accordance with AIM Rule 20.

The Company's 2026 Annual Meeting of Stockholders will be held in person at 535 Madison Avenue, Floor 10, New York, NY 10022, on 12 May 2026 at 9:00 A.M. EDT.

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About PPHC

Incorporated in 2014, PPHC is a global strategic communications platform that supports clients in enhancing and defending their reputations, advancing policy objectives, managing regulatory risk, and engaging with federal and state-level policymakers, stakeholders, media, and the public.

Engaged by approximately 1,400 clients, including companies, trade associations and non-governmental organizations, PPHC is active in all major sectors of the economy, including healthcare and pharmaceuticals, financial services, energy, technology, telecoms and transportation.

With operations across 18 offices in the United States and internationally, PPHC's services include government relations, public affairs and corporate communications, research and analytics, digital advocacy campaigning, and compliance support. The Company's shares are admitted to trading on the Nasdaq Global Market and on AIM, a market operated by the London Stock Exchange, under the ticker symbol "PPHC".

For more information, visit www.pphcompany.com.