South Korea's foreign exchange reserves increased in October from the month before.<br />The Bank of Korea says reserves amounted to an all-time high of around 406 billion U.S. dollars last month, up three billion dollars from September.<br />The central bank attributed the rise to an increase in revenue from its investments in foreign assets and the weaker U.S. dollar.<br />As of the end of September, South Korea had the world's ninth largest foreign exchange reserves,... with China at the top of the pile.<br />