The Bank of Korea has maintained the key rate at one-point-75 percent in April.
At a monetary policy meeting on Thursday, the central bank decided to wait and observe the impact of the quarter-percentage-point rate cut in March, according to Korea's (KBS WORLD) website.
From three-point-25 percent, the Bank of Korea lowered the rate by 25 basis points each in July and October of 2012, again in May 2013 and in August and October of 2014.
Financial experts are keenly focusing on whether the central bank will reduce the rate one more time next month as the economy remains fragile.