As per a deal between a global mining giant, BHP Billiton and the South Australian government have signed a contract in relation to the expansion of Olympic Dam.

The government has given them a year's time to decide the complete details about the investment of the bank. The deal took place in Melbourne, and would be the first ever deal done for uranium and copper extraction which would make it the world's biggest mining project. Not only would it provide various opportunities to South Australia but it would also increase job employment chances for Australians at the time when countries are suffering from job cuts.

The agreement would be presented in the SA parliament by next week where project's impact on environment would be discussed and if the deal gets a nod, then it would be given `No Objection certificate' from the Environment Ministry.

There are some conditions that have been put forth the government from the side of BHP, as they have told that they would be ready to make initial investment of $1.2 billion only if they get assurance that the project would be smoothly passed by the parliament.

This initial payment would make them start with basic things such as purchase of trucks, bricks, planning of infrastructure. But the government is taking full precautions and has given the company full twelve months to decide that whether they would like to continue with $30 billion project or not.