Alfa SAB de CV is a Mexico-based holding company, which manages a portfolio of diversified subsidiaries. Its portfolio includes Sigma, a producer, marketer and distributor of foods under a number of brands in Mexico, the United States, Europe and Latin America; Alpek, a producer of polyester, namely purified terephthalic acid (PTA), polyethylene terephthalate (PET) and fibers, and offers to the Mexican market expandable polystyrene (EPS) and caprolactam, among others; Nemak, a provider of lightweighting solutions for automotive industry and specialized in the development and manufacturing of aluminum components for powertrain and body structure; Axtel, a provider of information technology and communication services for enterprises, government and residential markets through its Alestra and Axtel brands, and Newpek, which is an oil and gas exploration and production company with operations in Mexico and the United States.