The annual interest rate on the papers which were scooped up mostly by domestic banks stands at 0.45%, which is significantly lower than previous such issues.

Demand surpassed supply with bids ranging from interest rates of 0.1% to 0.7%.

The buyers include all of the biggest banks in the country, as well as US investment bank Jefferies.

This is the biggest issue of debt papers since Slovenia issued US$3bn on the US market in early February.

It also comes 18 months after Slovenia issued EUR 1.1bn in treasury bonds at an interest rate of 4.15%, which will come due on Thursday.