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CALGARY, AB, Sept. 18, 2025 /CNW/ – Rockpoint Gas Storage Inc. (“Rockpoint” or the “Company”) announced today that it has filed a preliminary base PREP prospectus (the “Preliminary Prospectus”) with the securities regulatory authorities in each of the provinces and territories in Canada for its proposed initial public offering of class “A” common shares (“Class A Shares”) of the Company (the “Offering”). The number of Class A Shares to be offered and the offering price per share under the Offering have not yet been determined.

Rockpoint Gas Storage Logo (CNW Group/Rockpoint Gas Storage) (CNW Group/Rockpoint Gas Storage Inc.)

Rockpoint Gas Storage Logo (CNW Group/Rockpoint Gas Storage) (CNW Group/Rockpoint Gas Storage Inc.)

RBC Capital Markets and JPMorgan are acting as joint lead bookrunning managers for the Offering.

The Preliminary Prospectus contains important information relating to the Company, the Class A Shares and the Offering and is still subject to amendment and completion. Copies of the Preliminary Prospectus and any amendment will be accessible under the Company’s profile on SEDAR+ at www.sedarplus.com. An electronic or paper copy of the Preliminary Prospectus and any amendment may be obtained, without charge, from RBC Dominion Securities Inc. by mail at Attention: Distribution Centre, RBC Wellington Square, 8th Floor, 180 Wellington Street West, Toronto, Ontario, Canada, M5J 0C2 and by e-mail at distribution.rbcds@rbccm.com; or J.P. Morgan Securities Canada Inc. by mail at Attention: Equity Sales Desk, Suite 4500, TD Bank Tower, 66 Wellington Street West, Toronto, Ontario, Canada, M5K 1E7.

No securities regulatory authority has either approved or disapproved the contents of this press release. This press release does not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale or any acceptance of an offer to buy these securities in any province or territory of Canada prior to the time of receipt for the final base PREP prospectus or other authorization is obtained from the securities regulatory authority in such province or territory.

The Class A Shares have not been and will not be registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”), or any state securities laws, and may not be offered, sold or delivered, directly or indirectly, in the United States or to a U.S. person (as such term is defined in Regulation S under the U.S. Securities Act) unless registered under the U.S. Securities Act and applicable state securities laws or pursuant to certain exemptions from the registration requirements of the U.S. Securities Act and applicable state securities laws. This press release does not constitute an offer to sell or a solicitation of an offer to buy any of the Class A Shares in the United States.

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