Alfa SAB DE CV operates in the Petroleum refining sector. Alfa SAB de CV (Alfa) is a Mexico-based holding company that, through its subsidiaries, is engaged in the petrochemical, food processing, automotive and telecommunication sectors. The Company's business is structured in four divisions: Alpek, comprising the manufacture and distribution of polyethylene terephthalate (PET), polypropylene and expandable polystyrene, as well as other chemical and petrochemical products; Sigma, producing a variety of delicatessen meats, cheese, yogurts, frozen meals and other refrigerated food products; Nemak, active in development and manufacture of aluminum auto parts, heads and blocks for gasoline and diesel engines, and Alestra, offering such telecommunications services as data transmission, Internet access, local telephony and long distance calls, among others. In addition, the Company has facilities and operations established in North America, Central and South America; Europe, and Asia. In our complete report available for purchase the company is compared to: Antarchile S.A., Grupo Carso, S.A.B. De C.V. and Siam Cement Public Company Limited (The).