CONSTRUCTION, ENGINEERING, MANAGEMENT & PROCURE TECHNOLOGY S.A.C. CEMPROTEC S.A.C. (CEMPROTEC S.A.C.)

 FH INGENIEROS Y CONTRATISTAS GENERALES S.A.C.  PENTATECH CONSTRUCCION S.A.C.  CONSTRUCTION, ENGINEERING, MANAGEMENT & PROCURE TECHNOLOGY S.A.C. CEMPROTEC S.A.C.  FGA INGENIEROS SA  ESTANTERIAS METALICAS J.R.M. S.A.C