Stew Hamilton

CEO, Mercury

Stew became Mercury’s Chief Executive in September 2024. He joined Mercury in 2021 as the Executive General Manager, Generation, and was responsible for the management, operation and maintenance of our electricity generation assets.

Before joining Mercury, Stew was the Chief Executive at New Zealand Aluminium Smelters Ltd and has over 25 years’ experience working for industrial energy customers in mining, minerals processing and manufacturing in Australia, New Zealand and Africa.

Stew has a Chemical Engineering degree from Auckland University and an MBA from Melbourne University. With a proven track record of success in leading large, complex businesses, he is well placed to ensure Mercury capitalises and builds on its strong platform for growth.