In 1889 William Cornell Greene purchased the mine from General Pesqueira and founded the Nogales, Sonora-based company, The Cananea Consolidated Copper Company, S. A. (CCCC or 4C). In June 1906, a labor dispute erupted into the violent cross-border Cananea strike, that resulted in the death of 23 people and dozens injured, in a fight between the strikers and a posse led by Arizona Rangers from the United States. A corrido titled "La cárcel de Cananea" ("Cananea jail") written in 1917 and commemorating the incident has since become famous. At the time of the strike the population of 23,000 included 7,000 Americans and 5,000 Chinese.