Case Study: AngloGold Ashanti Limited achieves standardized, remotely supported intelligent operations and improved production efficiency with AVEVA

Enabling Intelligent Operations at a Gold Mine

AngloGold Ashanti Limited’s Geita Gold Mine in Tanzania faced falling production, a loss of plant-level skills and the challenges of operating a remote site that required standardized control, better alarming, historical production data and an expert control strategy. AVEVA was engaged (using Wonderware System Platform with Wonderware InTouch HMI, Wonderware Historian, Wonderware Information Server and Wonderware ActiveFactory reporting) to apply corporate standards, improve alarm management and reporting, and implement a fuzzy-logic Expert System to reduce process variation.

Systems Anywhere implemented AVEVA’s Wonderware suite, upgraded PLCs and deployed a transparent fuzzy-rule Expert System, alarm Pareto filtering and centralized reporting so operators and managers could access KPIs and reports in 1–2 seconds and receive remote support. The 12‑month roll‑out delivered corporate-wide standards, a state‑of‑the‑art control system, greatly improved alarm logging and prioritization, identification of bottlenecks (e.g., discharge dilution density) and the ability to apply remote fuzzy‑rule changes for rapid performance gains—improvements AVEVA’s solution enabled and continues to support.

AngloGold Ashanti Limited

Corné Lourens

Metallurgical Manager