AGM 2018, page-184

From my research, this was offered to Rex and he turned it down. The board have had qualified chairs recommended and turned them down. 

Either they know shareholders' interests better than shareholders or they want to be the heroes of the project, regardless of the effect on shareholders. Maybe they could just give us a clue as to why Rex is so important now, or any info on the vimson deal, or any reason for all this time without a chairman.