EMR Golden Grove Underground Mine Operations Photo

Our Leadership Team

Nick MosenthalGeneral Manager Operations

Nick has more than 30 years’ experience in the global mining industry. He was most recently the General Manager of the Newmont Nevada Underground Operations, and Operations Manager at the Newmont Tanami Operations. Prior to that Nick was General Manager Projects for MMG and General Manager Operations at the Golden Grove mine.

Nick is a Fellow of the Australian Institute of Mining and Metallurgy (AusIMM).

Nick spent the first half of his career on the deep gold mines of South Africa before moving to Australia. He has spent time in Mount Isa, Cobar and Kalgoorlie and now is based in Perth.

Stacey ApostolouChief Financial Officer

Ms Apostolou is a finance executive with significant experience acting as corporate Executive/Director and Company Secretary for a number of ASX listed mining companies over the past 30 years.
In these positions Ms Apostolou has been responsible for the corporate, treasury, finance, accounting and administration functions.

Ms Apostolou holds a Bachelor of Business Degree in Accounting and is a CPA.

Simon WulffMining Manager

With his Bachelor of Engineering (Mining) completed through the UNSW in Broken Hill, Simon has gained a diverse experience base in technical and operational roles in the Broken Hill mines. An experienced Mining Engineer with a breadth of site and project management roles held in a range of underground hard rock mines in Australia and internationally. Simon joined EMR Golden Grove in December 2018 as the Underground Manager and most recently has joined the senior leadership team as Mining Manager. As Mining Manager, Simon is responsible for the underground operations and overseeing surface mining opportunities as they develop.

Mark Van Heerden Geology Manager

Mark is a qualified Exploration Geologist with more than 10 years’ experience in the resources industry, both in Australia and overseas, with a focus on base metals and gold. He has successfully applied his education and experience on brownfields and greenfield exploration projects, including near mine exploration and resource development. Prior to joining EMR Golden Grove, Mark’s international experience includes exploration projects in British Columbia and the Yukon. He is a member of the Australian Institute of Geoscience.

Brett MilnerProcess and Maintenance Manager

Brett has 12 years mineral processing experience primarily focused towards flotation concentrators. Brett has held numerous positons within the mineral processing field and has a vast understanding of the Golden Grove operation, successfully delivering expansion and improvement projects along with the operational production plans.
With a heavy industry background Brett brings considerable experience in both production and maintenance practices.

John BurgessCapital Projects

John is a qualified Process and Environmental Engineer with over 40 years’ experience in operations management and project development across a range of base metals. John has extensive mining experience in Australia and overseas in both brownfield and greenfield operations, delivering optimisation and debottlenecking projects. Recent roles held by John include Manager of Metallurgy and Environment at Broken Hill, General Manager of the Renison Tin Mine, Angas Zinc Mine and Tala Hamza operations, as well as consulting to Zinifex Limited – Century Mine on various nickel, copper and gold operations. John also has extensive experience in Project Management, including the successful commissioning of the Angas Zinc Mine.