- 28.03.17 VicRoads/CMPA technical committee meeting held at Northern Quarries, Epping and included: C. James (E. B. Mawson & Sons), W. Payne (Quarry Crete), M. Wagner (Conundrum Holdings) and E. Gibson
- 29.03.17 E. Gibson met with Brian Hauser CCAA, in Melbourne
- 29.03.17 Earth Resources Ministerial Advisory Council meeting, Melbourne attended by E. Gibson
