LONDON (Reuters) - A private equity fund, which has grown in five years to be the world’s second biggest producer of stainless steel ingredient ferronickel, is holding talks about four or five potential acquisitions, one of its executives told Reuters. The Global Special Opportunities Ltd (GSOL) fund aims to boost its output of 50,000 tonnes a year of ferronickel both by expanding its current two operations and possible takeovers, Marcos Camhis said. Ferronickel is a combination of nickel and...