Senior Management

Mr Robert Mencel  Chief Executive Officer Appointed 24 May 2021 

Mr Mencel is an engineering and mining executive with more than 25 years’ experience developing and operating a wide range of mining, mineral processing and engineering operations. Previously he held the position of CEO for RONPHOS Corp., the Republic of Nauru’s Phosphate company, where he was responsible for production, marketing and export of phosphate to customers throughout Asia and Indian Pacific region. Mr Mencel brings significant senior managerial experience to the role at Centrex, having held the position of Managing Director/CEO of various ASX listed companies in the energy and resource sector.


Mr Alastair Watts  General Manager, Exploration 

BSc(Geo), DipBs (Front Line Management),  MAusIMM

Mr Watts is a Geologist with over 25 years experience in exploration, mining and project development. He has extensive gold, iron ore and phosphate mining experience as well as a successful history of mineral discovery and development. The technical expertise gained at the Phosphate Hill mine provided significant exposure to the fertiliser market to complement Centrex’s development of the Ardmore Phosphate Rock Project. A broad technical knowledge of exploration has been gained from base metal and gold projects in the Lachlan Fold Belt of New South Wales, the eastern goldfields of Western Australia, the Drummond Basin in north Queensland and nickel laterite deposits in Indonesia. He has held previous positions in both major resources houses, and mid-tier and junior operators. His roles have spanned mining, quality control and project management.