Mr. Colin Jackson reports

ATCO LTD. ELIGIBLE DIVIDENDS

The board of directors of Atco Ltd. has declared the quarterly dividends in the attached table.

Shares              TSX stock       Dividend    Record date (2024)  Payment date (2024)
                       symbol   per share ($)

Class I non-voting      ACO.X         0.4898               May 30              June 30               
Class II voting         ACO.Y         0.4898               May 30              June 30

These dividends are eligible dividends within the meaning of the Income Tax Act (Canada).

As a global enterprise, Atco and its subsidiary and affiliate companies have approximately 20,000 employees and assets of $25-billion. Atco is committed to future prosperity by working to meet the world's essential energy, housing, security and transportation challenges. Atco Structures designs, builds and delivers products to service the essential need for housing and shelter around the globe. Atco Frontec provides operational support services to government, defence and commercial clients. Atco Energy Systems delivers essential energy for an evolving world through its electricity and natural gas transmission and distribution, and international operations. Atco EnPower creates sustainable energy solutions in the areas of renewables, energy storage, industrial water and clean fuels. Atco Australia develops, builds, owns and operates energy and infrastructure assets. ATCOenergy and Rumi provide retail electricity and natural gas services, home maintenance services, and professional home advice that bring exceptional comfort, peace of mind and freedom to homeowners and customers. Atco also has investments in ports and transportation logistics, the processing and marketing of fly ash, retail food services, and commercial real estate.

We seek Safe Harbor.