In October 2018 Rex joined the Trustees and was elected to the role of Chair - he previously chaired the Board of Management. Since "retirement", Rex has taken up many governance positions, including being the Chancellor of Canterbury University, Chair of the West Coast District Health Board, and an Ecan Commissioner, among other positions. Rex was a key founder in the Water Rights Trust, formed to address increasing concern about poor water management and deteriorating water quality in Canterbury. He is a keen recreational angler and enjoys a number of outdoor sports.