Industry superannuation fund AMIST Super has hired Rogge Global Partners to manage a $50 million international sovereign debt mandate.

The allocation of the mandate is part of a wider overhaul of the fund's $200 million fixed income portfolio, in which AMIST has separated its credit and sovereign bond allocations.

"We've commented on the need for the fixed income allocation to be disaggregated into a credit and sovereign bond allocation as a way of managing risk and understanding the way a portfolio might behave," AMIST chief executive John Livanas said.

"We are now most of the way through implementing this for AMIST Super, with BT [Investment Management] managing our Australian bonds, Colonial [First State Global Asset Management] managing global credit, and a new mandate being set up with Rogge to manage international sovereigns."

Rogge manages more than $42 billion in assets globally, predominantly for pension funds.

Earlier this year, AMIST already took in-house a $130 million cash mandate, which is managed by the fund's new chief investment officer,  Megan Pham, who joined in August.

Pham is also responsible for the appointment of Rogge.

"Megan Pham, our new CIO, has been doing a great job setting up the international mandate, and I must say it's a delight to have her as part of the management team and seeing her develop her talents," Livanas said.

"It's also great to see Megan, [BTIM head of duration strategies] Errol Bome, who manages the Australian bonds mandate in BT, and the guys at Rogge collaborate to give us depth of insight across the yield curve in Australia and internationally."