After three consecutive months on the up, South Korea's producer prices remained flat in May.<br />The Bank of Korea says the production price index, a key barometer of future consumer inflation, stood at 103-point-seven in May almost unchanged from the previous month.<br />The central bank said industrial goods prices rose point-two-percent on rising global oil prices, but agricultural goods prices fell more than two percent on increasing supply.<br />The prices of electronics goods like semiconductors also rose slightly for the first time in seven months.<br />
