What happens when the world’s biggest mining company takes on a mining company?

Alcoa, the world leader in aluminum, announced on Tuesday that it will buy the world market for aluminum by 2020.

The aluminum company will be buying the aluminum market of about $2.5 trillion, which includes the world aluminum market, the company said in a statement.

The aluminum market is the second-largest in the world behind the U.S., but it is estimated that there are about 4.6 billion tons of aluminum in use in the U