The New Zealand arm of insurer nib holdings is buying the medical insurance business of OnePath Life (NZ) for about $24.67 million.
OnePath Life NZ is owned by the ANZ Bank New Zealand and nib has also struck a distribution deal with the bank.
The acquisition is subject regulatory approvals from the Reserve Bank, an ASX notice said.
Completion of the deal is due December and nib will fund it through existing available capital.
Mark Fitzgibbon, nib managing director, said the purchase was consistent with nib's strategy to grow the New Zealand private health insurance market and its overall share.
"Since acquiring Tower New Zealand's medical insurance business in November 2012, we have been investigating a number of growth opportunities in the New Zealand health insurance market. The purchase of OnePath Life NZ's medical insurance business meets our strict investment criteria, and importantly provides us with additional scale and scope to grow and leverage our existing New Zealand operations," he said.