Sabino GarcÃa Vallina began his professional career in 1969 in Goyarrola DÃaz Galvez, S.A. as Project Director. In 1983 he joined ERPO as Operations Director of the electrical area. In 1986, with the creation of TSK as a result of the merger of the different electrical departments of the ERPO group, he was appointed Production Director of TSK. In 1990 he acquired TSK from ERPO and became its Chairman and CEO.