Over the course of the next seven years, he rose from employee in the zinc, copper, and lead division, all the way up to co-director. Glencore is now the largest commodities trading company in the world, and is headquartered in Baar, Switzerland. Glencore went public in the spring of 2011, and while its shares dropped in value by a whopping 20%, the company recently announced plans to join forces with the mining company, Xstrata. Together, the two massive companies would control a vast empire of mining and marketing. The merger itself is valued at $90 billion.
