Rockpoint Gas Storage Inc. ("Rockpoint") announced its oversubscribed and upsized initial public offering (IPO) on October 8, 2025, and closed the transaction on October 15, 2025. The Company issued 32,000,000 class "A" common shares at C$22.00 per share, raising gross proceeds of approximately C$704,000,000. In addition, the underwriters exercised their over-allotment option in full, acquiring 4,800,000 additional Class A Shares at the offering price from affiliates of Brookfield Asset Management Private Institutional Capital Adviser (Canada), L.P. ("Brookfield"), for gross proceeds of about C$105,600,000. Rockpoint did not receive proceeds from the over-allotment option, as these went to Brookfield affiliates.

The IPO was led by RBC Capital Markets and J.P. Morgan as joint lead bookrunning managers, with participation from Wells Fargo Securities, BMO Capital Markets, CIBC Capital Markets, National Bank Financial Inc., Scotiabank, TD Securities Inc., ATB Capital Markets, Desjardins Capital Markets, and Peters & Co. Limited. The Class A Shares are listed on the Toronto Stock Exchange under the symbol "RGSI."

Legal advisors included Torys LLP (Canadian law) and Latham & Watkins LLP (U.S. law) for the Company, and Blake, Cassels & Graydon LLP (Canadian law) and Skadden, Arps, Slate, Meagher & Flom LLP (U.S. law) for the underwriters. All values are in Canadian dollars.