ATN International, Inc.

Cautionary Language Concerning Forward-Looking Statements

This press release contains forward-looking statements relating to, among other matters, the Company’s future financial performance, business goals and objectives, and results of operations, its future revenues, operating income, cash flows, network and operating costs, Adjusted EBITDA, and capital investments; subsequent closings of the US Tower Portfolio Sale and the additional consideration related thereto and the timing thereof; the Company’s liquidity; and management’s plans and strategy for the future. These forward-looking statements are based on estimates, projections, beliefs, and assumptions and are not guarantees of future events or results. Actual future events and results could differ materially from the events and results indicated in these statements as a result of many factors, including, among others: (1) the general performance of the Company’s operations, including operating margins, revenues, capital expenditures, the impact of cost savings initiatives, and the retention of and future growth of the Company’s subscriber base and average revenue per user; (2) our ability to satisfy outstanding conditions to complete subsequent closings with respect to the US Tower Portfolio Sale; (3) the timing, manner and extent to which proceeds from the US Tower Portfolio Sale are deployed may be affected by future market conditions, potential changes in tax laws and the Company's ability to develop corporate investment and strategic opportunities; (4) government regulation of the Company’s businesses, which may impact the Company’s telecommunications licenses, the Company’s revenue and the Company’s operating costs;

(5) the impact (if any) of geopolitical instability and US military presence in the Caribbean; (6) management transitions, and the loss of, or an inability to recruit skilled personnel in the Company’s various jurisdictions, including key members of management; (7) the Company’s reliance on a limited number of key suppliers and vendors for timely and cost-effective supply of equipment and services relating to the Company’s network infrastructure and information systems; (8) the Company’s ability to satisfy the needs and demands of the Company’s major carrier customers; (9) the Company’s ability to realize expansion plans for its fiber markets; (10) the adequacy and expansion capabilities of the Company’s network capacity and customer service system to support the Company’s customer growth; (11) the Company’s ability to efficiently and cost-effectively upgrade the Company’s networks and information technology platforms to address rapid and significant technological changes in the telecommunications industry; (12) the Company’s continued access to capital and credit markets on terms it deems favorable; (13) the Company’s ability to successfully replace revenue declines in its US Telecom businesses as a result of the pending US tower portfolio sale through carrier, enterprise broadband, and consumer-based broadband services; (14) ongoing risk of an economic downturn, political, geopolitical and other risks and opportunities impacting the Company’s operations, including those resulting from changes and uncertainties related to trade policies and tariff regulations, financial market volatility and disruption, uncertain economic conditions in the US and abroad, inflationary concerns, and other macroeconomic headwinds including increased costs and supply chain disruptions; (15) the occurrence of weather events and natural catastrophes and the Company’s ability to secure the appropriate level of insurance coverage for these assets; and (16) increased competition. These and other additional factors that may cause actual future events and results to differ materially from the events and results indicated in the forward-looking statements above are set forth more fully under Item 1A “Risk Factors” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, filed with the Securities and Exchange Commission (“SEC”) on March 16, 2026, and the other reports the Company files from time to time with the SEC. The Company undertakes no obligation and has no intention to update these forward-looking statements to reflect actual results, changes in assumptions, or changes in other factors that may affect such forward-looking statements, except as required by applicable law.