Intercontinental Exchange's world cotton futures contract will begin trading on November 2, 2015, pending regulatory approval, the exchange said on Tuesday, announcing the long-awaited launch of a contract that has met a series of hurdles. Merchants have been pressing for years for a world contract. ICE's cotton No 2 futures contract, which only allows for delivery of US cotton, has long served as the world benchmark, even though the United States has been surpassed as the world's largest grower