Dalrymple Bay Infrastructure (ASX:DBI), through its Dalrymple Bay Finance subsidiary, secured new loan facilities totalling AU$1.07 billion to repay and cancel its existing AU$410 million in revolving credit facilities, repay USPP notes, and close out associated swaps, according to a Tuesday filing with the Australian bourse.

The refinancing is expected to cut interest costs by about AU$75 million through 2030, the filing said.

The company expects to refinance some of the facilities maturing in 2030 into longer-term debt over the coming years, the filing added.

The company said its investment-grade credit rating remains unchanged after the refinancing.