Infratil announced that Mark Tume will retire as Chair on 30 May with current board director Alison Gerry succeeding him. Mr. Tume has served as Chair since 2013, he has been on Infratil's Board since 2007. Mr. Tume will remain on the Board as a director until the end of 2022.

Mark Tume said the time was right to step down and it was pleasing to be able to do so with continuing excellent results, and with Infratil recently acknowledged as New Zealand's Company of the Year in the Deloitte Top 200. Incoming chair Alison Gerry steps up to the role having been an independent director on Infratil's Board and Chair of the Audit and Risk Committee since 2014. She has had a governance career for the last 15 years and is also on the boards of ANZ Bank and Air New Zealand, Chair of Sharesies and Co-founder of OnBeingBold.