Service: Grade control

Sunrise Dam is located in Laverton, Western Australia and Barminco works with long-term client AngloGold Ashanti to provide underground production mining and development services. Sunrise Dam is Barminco’s largest Australian contract, with over 330 people working at the site and producing approximately 2.6Mt per year. It began as an open-pit mine but is now exclusively an underground operation.

In line with BHP’s technology roadmap, our exploration crew have utilised our semi-autonomous hands-free drilling equipment to increase safety and efficiency on site. We continue to provide consistent results via deep navigational diamond and RC drilling – increasing accuracy and cost savings.

Iduapriem mine comprises the Iduapriem and Teberebie properties in a 110km2 concession and it’s located in the Western Region of Ghana, some 70km north of the coastal city of Takoradi and about 10km south-west of the Goldfields Tarkwa mine. Iduapriem mine is an open-pit mine and its processing facilities include a carbon in-pulp (CIP) plant with a gravity circuit.

In 2018, Iduapriem mine increased production 11% year on year to 254K oz and again to 275K oz in 2019 (the mine highest production since 2004). The production increase was driven by key factor of mining deeper and higher-grade areas in the Teberebie pit, where AMS was contracted to mine. AMS was awarded the mining services contract in February 2014 worth about 15 million US Dollars per year which is reviewed annually. Under the mining services contract, AMS is responsible for supplying all incidental goods, mining fleet and skilled labour necessary for the proper completion of the works and the performance of the contract. AMS employs 357 people at the Iduapriem project with 38% of the workforce coming from the catchment areas and the host region, and the remaining 62% being employees from the other regions of Ghana.

AMS has worked with respect to the environment and safety for its employees without affecting our ability to deliver AAIL required mining target KPIs. In December 2019 AMS was awarded a 1-year contract extension generating revenue of $45m for open pit mining services, equipment supply and maintenance. Following our revised production schedule issued by AGA, AMS labour numbers effective 16th April 2020 reduced to 267 people with 39% of the workforce coming from the catchment areas and the host region, and the remaining 61% from the other regions.