I think you will find (and I stand to be corrected) that CDU must give the ASX 2 weeks notice before commencing the buy back.
MND Albemarle lithium downsize burns $200M hole in Monadelphous's pocket as latter's contracts terminated
KAI Pilbara Minerals buys land off Kairos part of its York gold project for $20M – and a 2% royalty on any PLS gold sales