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South Africa is famous for its gold.
But a South African company, Renergen, found something different.
It's helium.
Helium is an important gas.
We put helium in party balloons.
People use it in technology and in space travel too.
Renergen bosses Stefano Marani and Nick Mitchell bought some land in South Africa in 2012 for $1.
They wanted it for natural gas.
It was a surprise to find the helium with the natural gas.
Marani was very happy.
Finding the helium was important for Renergen.
The US makes lots of helium.
But now more helium will come from South Africa.
Helium is very unusual.
It comes from only 10 countries in the world.
Renergen is testing the new area.
The helium could be worth $100 billion.
And the gas will be easy to get out.
This is good news.
The work won't damage the land.
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