ArcelorMittal South Africa said last week that it had spent R750 million cleaning up its controversial Vaal waste disposal site and had committed another R1 billion to reduce air pollution at its plants...[T]he company has...been threatened with a criminal investigation for repeatedly ignoring instructions to stop dumping hazardous waste on an unpermitted site in Vereeniging...To her credit, ArcelorMittal South Africa's new chief executive, Nku Nyembezi-Heita, appears to have taken the first step by publicly acknowledging the scale of the clean-up problem. [Also refers to Highveld Steel & Vanadium (part of Anglo American), Duferco]