Tokyo leads Asia stocks down amid China concerns By: MarketWatch August 27, 2009 at 06:07 AM EDT Most Asian markets declined Thursday with exporters leading Japanese shares lower as increased risk aversion helped the yen gain strength. Read More >> Related Stocks: Bhp Billiton Ltd ADR China Petroleum & Chemical Corp ADR Cnooc Ltd Nippon Yusen ADR Rio Tinto Plc ADR The Wharf [Holdings] Ltd Wipro Ltd ADR