South Korea posted a current account surplus last month, turning around from a deficit the previous month, thanks to brisk exports in automobiles and petrochemical products, the central bank said Thursday. Current account surplus reached 639.4 million U.S. dollars in February, a turnaround from a revised deficit of 968.8 million dollars tallied in the previous month, according to the Bank of Korea (BOK). South Korea\'economy registered its first current account deficit in 23 months in January, but shifted into the surplus helped by growing exports, which account for more than 50 percent of the economy. The current account is the broadest measure of international trade, including goods, services and investment income.