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Carso Global Telecom SAB de CV is engaged in providing telecommunication services. The company was founded on June 24, 1996 and is headquartered in Mexico City, Mexico.

Condumex SA de CV manufactures, markets and distributes metal and plastic products. The firm sells copper, aluminum, brass and plastic products for industrial, construction and agricultural uses. The company was founded in 1950 and is headquartered in Mexico City, Mexico.

Grupo Condumex SA de CV manufactures electronic components and generates electricity. Its products include electrical & telecommunications conductors, power generators, transformers, plastic products, and non-ferrous metal products. The group is formed by more than 50 companies that are active in the sectors such as automotive parts, cables, electronics, and energy total development projects. It is present in Spain, Germany, Chile, Guatemala, Brazil, China and the United States of America. Grupo Condumex was founded in 1954 and is headquartered in Mexico City, Mexico

Part of Worldwide Strategies, Inc., Euzkadi Corp. of America SA is a Mexican company that produces and supplies non-GMO grains. Euzkadi Corp. of America was acquired by Worldwide Strategies, Inc. on May 09, 2011.

América Telecom SA de CV provides cellular and telecommunication services. It provides telecommunication services, through its subsidiary Telcel, in the nine mobile regions into which Mexico is divided. Its other subsidiaries include Corporativo Empresarial en Telecomunicaciones, Orca, Technology Fund One, Enitel Intelsat, Construccion y Servicios Internacionales, Techtel LMDS Comunicaciones Interactivas SA, Telet SA, Americel SA, Comunicacion Celular SA, Consorcio Ecuatoriano de Telecomunicaciones SA, Telecomunicaciones de Guatemala, SA, Telcel CompUSA, Inc., TracFone Wireless, Inc., Arbros Communications, Inc. and Genesis Telecom CA, which operate in various countries in the American continent. The company was founded in December 2001 and is located in Mexico City, Mexico.

Telmex Internacional SA de CV is a holding company. It is engaged in providing telecommunications services such as voice, data, internet access, pay television and integrated communications solutions, through its subsidiaries. The company was founded on December 26, 2007 and is headquartered in Mexico city, Mexico

Carso Infraestructura y Construcciones SA de CV provides engineering and construction services. The firm designs and builds oil and gas pipeline installations, power generation facilities, telecommunications infrastructure, residential buildings, office spaces, industrial complexes, commercial centers and road works, including tunnels, bridges and highways. It also fabricates and assembles equipment and ancillary structures for oil rigs and drilling platforms. The company was founded in 1999 and is headquartered in Mexico City, Mexico.