ALFA comprises five business groups: Alpek (petrochemicals), Nemak (high-tech aluminium auto parts), Sigma (refrigerated foods), Alestra (information technology (IT) and telecommunications) and Newpek (natural gas and hydrocarbons). It is a world-leading manufacturer of aluminium engine heads and blocks. It is one of the world's largest producers of PTA and PET. It is a leader in the processed meats market in North America and one of Mexico's leading IT and telecom companies.