The Perth Mint is one of a handful of elite global mints, on par with the U.S. Mint and the Royal Canadian Mint.
The Royal Mint is set to produce 60 gold coins and 14, 000 silver coins for the 2012 Games.
The Royal Mint's Llantrisant headquarters will be making around 4, 700 medals in total.
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But the Royal Mint said the change would not have an adverse impact.
He was the Master of the Royal Mint for 30 years, and spent a great deal of that time hunting down and capturing counterfeiters.
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The Royal Mint is asking anyone lucky enough to get one in their change to contact it on its Facebook page or on Twitter.
The cabinet met at the Royal Mint in Llantrisant where Mr Cameron denied that the UK government was dragging its feet on an announcement about the commission.
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This will enable the Royal Mint to produce giant coins to commemorate the Olympics and other events, such as the Commonwealth Games, subject to permission from the Queen.
Meanwhile, the SNP MSP for Kilmarnock and Loudoun, Willie Coffey, is to ask the Scottish banks, the Royal Mail, the Royal Mint and the Bank of England to issue commemorative notes, stamps and coins in Burns' honour.
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And the website's search facility throws up new research possibilities: Clive Emsley of Open University has spotted that an inspector from the Royal Mint gave evidence dozens of times during the 1840s, for example, which throws new light on the true scale of counterfeiting at that time.
The Royal Canadian Mint will no longer distribute the coin to financial institutions around the country, but it will remain legal tender.
As of this fall, the Royal Canadian Mint will cease distributing Canadian pennies, though consumers will still be able to use them for transactions.
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