100 Dollars Year of the Ox

Singapore's Lunar series has been running since 1981, making it one of the longest-continuously-issued bullion programs in Southeast Asia. The 2009 Ox issue fell during the global financial crisis, a period when gold bullion demand spiked sharply and many sovereign mint allocations sold out well ahead of schedule.

The .9999 fineness — four nines — was a deliberate commercial distinction from the .999 standard common at the time, positioning the Singapore Mint against Canadian and Australian competition for the premium collector-investor market.