Consumer prices in Korea eased to the 4-percent level for the first time in 10 months in February, raising hopes that inflation will cool down further to the government's 2023 target of the mid-3 percent range. But Korea continues to face obstacles in its efforts to curb inflation, as the growth of utility costs reached an all-time high of 28.4 percent, while core inflation _ a gauge of long-term price trends _ climbed 4 percent.