China's Ministry of Commerce has announced that it has decided to extend antidumping and antisubsidy investigations into US-made off-road vehicles and sedans with an engine displacement of 2.0 liters and above. The extension is for six months, until May 6, 2011. China launched the probes on November 6, 2009, after the China Association of Automobile Manufacturers complained that US car makers had unfairly benefited from 31 government subsidy programs.