Washington / AFP Vale SA is holding discussions with Asian mining companies about a potential sale of a minority stake in its Brazilian iron-ore assets that could fetch as much as $7 bn, according to people familiar with the matter. The world’s top iron-ore producer may also consider streaming deals, the people said, asking not to be identified as the …

  Washington / AFP US regulators have given trading group IEX a green light to launch a new stock exchange, which will operate at a slightly slower speed of trading, the Securities and Exchange Commission said. Investors Exchange (IEX) will introduce a small delay or “speedbump” of 350 milliseconds on orders to buy and sell stock, in an attempt to level …

  New York / AFP Shares of Oi SA tumbled on speculation that Brazil’s most indebted telecommunications operator is closer to filing for bankruptcy protection after documents showed little sign of progress in talks with bondholders. The documents give a glimpse into just how complicated the restructuring is. Rio de Janeiro-based Oi, which has about 50 billion reais in debt ($14.5 …