Freeport-McMoRan Inc., often called Freeport, is a mining company based in the Freeport-McMoRan Center, in Phoenix, Arizona.

It was first founded on July 12, 1912. The current company was created in 1981 through the merger of Freeport Minerals, formerly Texas Freeport Sulphur Company and McMoRan Oil & Gas Company, becoming Freeport-McMoRan Inc.

Freeport-McMoRan is the world’s largest molybdenum producer, conducting molybdenum mining operations at the Henderson underground mine and as a by-product at mines in North and South America. Freeport-McMoRan has four molybdenum processing facilities at Green Valley, Arizona; Fort Madison, Iowa; Stowmarket, United Kingdom and Rotterdam, Netherlands.

It is also one of the largest producers of copper. In 2015, 67% of its revenues were from the sale of copper, 11% from the sale of petroleum, 10% from the sale of gold, and 5% from the sale of molybdenum. 

According to investors.fcx.com & wikipedia