"This deal was possible due to awareness that Korea's economy is strong, and its foreign exchange and financial markets are safe," Lee told reporters.

Market watchers said the agreement will add to South Korea's financial stability, as Switzerland is one of the most credible countries around the globe.

One key risk facing South Korea's economy this year is a protectionist move by the US government, Lee said.

"It is difficult to judge whether the pace of expansion of protectionist trade is faster than expected. But, there are concerns about the possibility," Lee said.

The BOK raised its key interest rate on Nov. 30 last year, marking the first rate hike in more than six years.

Central banks in advanced economies, including the US, are likely to hike their key rates at a faster pace than anticipated this year as the global economy has recovered from the 2008 financial crisis.

Lee said he remains concerned about the pace of anticipated monetary tightening by central banks in advanced economies. (Yonhap)