What are Singapore Government Securities (SGS)? They are basically government bonds by issued Monetary Authority of Singapore (MAS) on behalf of the Singapore Government. They can be either Treasury Bills (T-Bills) which mature in less than one year or SGS Bonds with maturities of 2, 5, 10, 15, 20 and 30 years. However, T bills can only be bought through ATM, while you can trade SGS bonds of 2 years and above maturity on SGX. SGS bonds at this moment are AAA rated by S&P, the highest rating available. All SGS bonds pay coupons semi-annually. 4 Facts About SGS Fact 1. Everyone can buy them. Yes. It is a constitutional right and do not let them bankers tell you otherwise. Fact 2. They are available on auction days with a newspaper announcement preceding, usually in the Finance section of the papers and I am not sure if this ad appears ......