Decade of 30
Baldomero Barbará buys from Fernando Arens Jr. the COMPANHIA BRASILEIRA DE METALURGIA in São Paulo, where he takes Caeté machines. The merger of the two companies gives rise to BARBARÁ S.A. The name BARBARÁ that would become consecrated as an entry of important dictionaries as synonymous with the product, enters the history of Brazilian sanitation.
Baldomero Barbará transforms the company BARBARÁ S.A. into COMPANHIA METALÚRGICA BARBARÁ. The Barra Mansa Metallurgical Plant is inaugurated in the state of Rio de Janeiro. In Caeté that had housed the Mining Company of Metallurgy, the COMPANHIA FERRO BRASILEIRO was created by the French company PONT-A-MOUSSON.