Alberto Federico Terrazas Seyffert

ESJ SA de CV is a Mexican company that manufactures metal structures. The private company is based in Chihuahua, Mexico.

Copachisa SA de CV constructs non-residential buildings. The private company is based in Ciudad Juarez, Mexico. and has subsidiaries in Mexico.

Part of Copachisa SA de CV, Emycsa SA de CV is a Mexican company that manufactures and distributes steel structures. The company is based in Chihuahua, Mexico.

Camcem S.A. de C.V. is a leading supplier and producer of cement, concrete, aggregates, coal, and construction-related services in Mexico and the United States. The private company is based in Chihuahua, MX, and has subsidiaries in the Europe and Americas regions. Camcem S.A. de is listed on the Mexican stock exchange under the ticker symbol gcc*. The Mexican company employs approximately 3,000 employees in various locations in the United States and Mexico. The company was founded in 1941 and has an annual cement production capacity of 6 million metric tons.

Inmobiliaria Ruba, SA de CV together with its subsidiaries engaged in the development, promotion, construction and sale of public housing and a half. Its main activity consists in the acquisition and development of urban land and the design, promotion and marketing of social housing and a half, and operates through contracts with independent building for the entirety of the development and construction of their projects, which gives flexibility in the operation and efficiency of fixed costs.

Camcem S.A. de C.V. is a leading supplier and producer of cement, concrete, aggregates, coal, and construction-related services in Mexico and the United States. The private company is based in Chihuahua, MX, and has subsidiaries in the Europe and Americas regions. Camcem S.A. de is listed on the Mexican stock exchange under the ticker symbol gcc*. The Mexican company employs approximately 3,000 employees in various locations in the United States and Mexico. The company was founded in 1941 and has an annual cement production capacity of 6 million metric tons.

Inmobiliaria Ruba, SA de CV together with its subsidiaries engaged in the development, promotion, construction and sale of public housing and a half. Its main activity consists in the acquisition and development of urban land and the design, promotion and marketing of social housing and a half, and operates through contracts with independent building for the entirety of the development and construction of their projects, which gives flexibility in the operation and efficiency of fixed costs.

Camcem S.A. de C.V. is a leading supplier and producer of cement, concrete, aggregates, coal, and construction-related services in Mexico and the United States. The private company is based in Chihuahua, MX, and has subsidiaries in the Europe and Americas regions. Camcem S.A. de is listed on the Mexican stock exchange under the ticker symbol gcc*. The Mexican company employs approximately 3,000 employees in various locations in the United States and Mexico. The company was founded in 1941 and has an annual cement production capacity of 6 million metric tons.

Inmobiliaria Ruba, SA de CV together with its subsidiaries engaged in the development, promotion, construction and sale of public housing and a half. Its main activity consists in the acquisition and development of urban land and the design, promotion and marketing of social housing and a half, and operates through contracts with independent building for the entirety of the development and construction of their projects, which gives flexibility in the operation and efficiency of fixed costs.