Ria Novosti: A domestic company’s purchase of the GM’s gas-guzzling Hummer brand goes against China’s environmental policies, Xinhua agency said on Tuesday citing an official with the cabinet’s Development Research Center. China’s Tengzhong, which produces heavy machinery, announced last week that it had signed a preliminary deal with the troubled U.S. car giant to buy the right to produce Hummer off-road vehicles. “If the Chinese company is just trying to stir media hype, that is …