Giant cranes are surrounded by cargo containers at a yard in Busan, the country's biggest and the world's No. 5 container port, about 420 km (262 miles) southeast of Seoul, in this July 21, 2010 file photo. South Korea's economy grew faster than expected in the second quarter thanks to robust investment that showed businesses were confident about a sustained upturn even as the nation's main trade partners appeared to lose steam. REUTERS/Truth Leem/Files (SOUTH KOREA - Tags: BUSINESS)