In the early 20th century the bank opened new branches in San Carlos (March 1906), Quirihue (opened in 1904 and closed in 1912) and San Javier (the latter in 1926, closed on September 11, 1931 and reopened in 1943). The earthquake of December 1, 1928 severely damaged the building of the bank, so the institution continued to serve in the side gardens of the city's Plaza de Armas while the management was kept in the underground of the destroyed building. Between February 1929 and April 1930 the headquarters were rebuilt, designed by the brothers Carlos and Alberto Cruz Eyzaguirre and built by the company Forteza Hermanos. The 1939 Chillán earthquake destroyed the Cauquenes branch, which was later rebuilt.