Mexican conglomerate Alfa said first-quarter net profit more than doubled, driven by its petrochemical unit, which benefited from China's increased demand for polyester and nylon. Monterrey-based Alfa (ALFAA.MX) earned 2.5 billion pesos ($210 million) in the quarter that ended in March, up from 1.1 billion pesos in the same period a year earlier, according to a filing with the Mexican stock exchange on Thursday.
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