Reuters reported that shares in ArcelorMittal's South African unit jump nearly 7% as traders bet the steel maker resolve pricing dispute with Kumba Iron Ore while technical factors suggest the stock was due for a rebound. As per report, ArcelorMittal South Africa gains 6.93% at ZAR 76.99, a day after government said the company and Kumba were committed reaching an agreement. Mr Sasha Naryshkine, a trader at…