Mr Calderwood has over 30 years of extensive experience in exploration and production management and played a key role in discovering several world-class gold deposits in Western Australia and Africa, including Edikan (Perseus), Kibali (Barrick-AGA) and Tarmoola (King of the Hills) in Western Australia.

He is the former Managing Director and CEO of West African gold producer Perseus Mining Ltd (ASX/TSX: PRU). He led Perseus for nearly nine years, during which time it transitioned from IPO to gold production and became an ASX100 company with a market capitalisation of more than $1.6 billion.

Mr Calderwood also has extensive experience in lithium and tantalum exploration, development, and production. From 2016 to 2019 he oversaw the discovery and development of the Bald Hill lithium mine in Western Australia and subsequently has had exploration advisory roles with listed and private companies.

Mr Calderwood previously served as Midas’ Exploration Manager since its ASX listing in 2021.