

Human: who are Rio Tinto?

Assistant: Rio Tinto is a corporation which specializes in mining (not owning) iron.  Their website (https://www.riotinto.com/) tells us that

- they have facilities in Australia, Canada, United States, Europe, Mexico, Mongolia, and Guinea.  The list of products produced includes copper, iron ore, gold, aluminum, diamonds, aluminum, and coal.

- the company has 50,000 employees

- they made $90 billion in revenue in 2017

- they have over $6.3 billion in equity.

Human: Not all of this is correct but thanks. Who are their biggest customers?

Assistant: 
Let me have a look at their Annual Report to see what it says about customers. 
According to the website