The Canadian Platinum Maple Leaf is the official platinum coin of Canada. It was first issued in 1988 by the Royal Canadian Mint and was available until 2002 in five different denominations, all of which contained 999.5 / 1000 pure platinum. The bullion coin was partially reintroduced in 2009 as a nominal value of 1 troy ounce (31.10 g), with a new portrait of Queen Elizabeth II on the front. The coins are legal tender in Canada but, as is often the case with bullion coins, their face value is lower than the market price of the material they are made of.