AltaGas Ltd. announced that it has agreed to issue $350 million of senior unsecured medium term notes (the "10 Year Notes") with a coupon rate of 5.141%, maturing on March 14, 2034 and $250 million of senior unsecured medium term notes (the "30 Year Notes") with a coupon rate of 5.597 percent, maturing on March 14, 2054 (the "Offering"). The Offering is expected to close on or about March 14, 2024. The net proceeds resulting from the Offering will be used to refinance the Company's March 2024 medium term note maturities, to pay down other existing indebtedness, to fund working capital and for general corporate purposes.

The Offering is being made through a syndicate of investment dealers co-led by CIBC World Markets Inc., National Bank Financial Inc. and TD Securities Inc. under AltaGas' short form base shelf prospectus dated March 31, 2023, as supplemented by a prospectus supplement dated May 11, 2023 and related pricing supplement dated March 11, 2024.