Asia's factory pain worsens as China's recovery fails to lift demand

TOKYO (Reuters) - Asia's factory pain deepened in May as the slump in global trade caused by the coronavirus pandemic worsened, with export powerhouses Japan and South Korea suffering the sharpest declines in business activity in more than a decade.A series of manufacturing surveys released on Monday suggest any rebound in businesses will be some time off, even though China's factory activity unexpectedly returned to growth in May.China's Caixin/Markit Manufacturing Purchasing Managers' Index..