The global commodity markets are no stranger to controversy. But when a firm as large as Trafigura finds itself facing several major legal battles simultaneously, the industry must take note. One concerns an alleged fraud involving nickel shipments worth about $600 million; another involves a landmark bribery conviction. A third centres on the long-running dispute related to Nyrstar, in which Trafigura has faced allegations over its role in the company’s financial collapse. T