South Korea's producer prices remained flat in June on the back of cheaper agricultural goods prices.<br /> The Bank of Korea says the production price index, a barometer of future consumer inflation, hit 104-point-four in June, similar from a month earlier.<br /> Agofishery goods prices fell more than three percent as supply went up.<br />Rising global oil prices drove up production prices in April and May, but it fell slightly last month by about one percent, recording an average of 73-point-six U.S. dollars a barrel in June, lowering the price gain in industrial goods. <br />