“Rio Tinto has worked with Virotec since the early 2000’s and most recently over the last two and a half
years directly with Rio Tinto Aluminium Bauxite and Alumina Pacific Operations (RTA) to understand and
evaluate the potential capacity of its Bauxsol Technology to treat red mud produced by Rio Tinto’s
Gladstone alumina refineries. This has led to a Stage 1 processing facility located at the Queensland
Alumina Refinery (QAL) in Gladstone. With this facility in place RTA are working with Virotec to increase
the volume of material created and used for beneficial reuse in a variety of remediation and other uses.”