I don't know specifically wrt to Singapore, but this is a common structure. It used to be called a "Dutch Sandwich", but now called the Double Irish: http://en

I don't know specifically wrt to Singapore, but this is a common structure. It used to be called a "Dutch Sandwich", but now called the Double Irish: http://en.wikipedia.org/wiki/Double_Irish_arrangement http://en.wikipedia.org/wiki/Double_Irish_arrangement