Asia stocks drop, with Japan exporters weak By: MarketWatch January 05, 2012 at 21:00 PM EST Asia stocks trade on a lower note, with Japanese exporters suffering from currency headwinds. Read More >> Related Stocks: Bank of China Ltd Ad ADR Bank of Communications Co. Ltd China Petroleum & Chemical Corp ADR Cnooc Ltd Eneos Holdings Inc HSBC Holdings Plc ADR Inpex Corp Japan Petroleum Exploration Ltd Macquarie Group Ltd Mazda Motor Corp National Australia Bank Ltd [Victoria Australia Nec Corp Nissan Motors ADR Olympus Corp PetroChina Sony Corp