The metal in magnets and phone batteries - but is some of it being mined by children?
The latest business and finance news from around the world, on the BBC.
Reforms at Fifa, Swansea City and US soccer, the endurance of the 'Made in China' label.
But we hear that it's far from business as usual.
The exodus of young, skilled workers from Portugal since the eurozone crisis
The key building block for CFCs and a string of other gases posing a threat to mankind
What will the Trans-Pacific Partnership mean for global trade?
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