Investor Presentaiton

Transaction details Price and consideration Transition Services Agreement Committed financing Transaction structure • US$1.125 billion purchase price, including US$140 million of tax value . . 9.6x LTM 3/31/21 Adjusted EBITDA net of synergies & tax benefits (1)(2) All cash consideration ~US$82 million of costs over ~2 years to separate network from WOW!, interconnect with ABB and upgrade network, including IPTV capabilities, to deliver superior growth plan ⚫ 12-18 month TSA to support business while ABB stands-up infrastructure to support business during transition phase for integration of network, systems and products . Billing, Customer Service, Engineering and Sales & Marketing support to be provided under TSA • WOW! Ohio's key vendors' service levels agreements (SLAs) are in-line with those of ABB's existing vendors • . US$900 million Incremental Senior Secured Term Loan B to fund majority of purchase price Remaining purchase price funded with cash on hand Purchase of assets, creating a tax step-up by which intangible assets can be amortized for tax purposes • Cash-free, debt-free basis • Q1 FY2022 expected closing Anticipated closing . Regulatory approval process for franchise agreements Hart-Scott-Rodino, CFIUS approvals and customary closing conditions (1) LTM 3/31/21 Adjusted EBITDA of US$103 million, including adjustments to reflect the expected cost structure of Atlantic Broadband and run-rate synergies. 17 (2) Multiple based on Transaction value using a tax-adjusted purchase price, which is net of the US$140 million tax benefits related to the step-up of intangibles in an asset purchase. Refer to page 21 for a detailed explanation on the tax benefits. (()) COGECO ATLANTIC broadband COMMUNICATIONS a Cogeco company

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