*S. Korean Economy Forecast To Grow 5.9% In 2010: KDI

*Singapore April Non-Oil Domestic Exports Up 2.1% On Month Vs. 2.9% Increase In March

*Singapore April Non-Oil Domestic Exports Up 29% On Year Vs. 25% Increase In March

*S. Korean Trade Surplus Rises To US$4.06 Bln In April

U.K. House Prices Rise 0.7% In May