Grupo Sanborns Mexico City tourist attraction and national monument. This is probably the world's only pharmacy decorated with a mural by José Clemente Orozco. In 1946, Frank Sanborn sold his interest in Sanborns to fellow pharmacist Charles Walgreen Jr. of Chicago. Like Walgreens, Sanborns does not use an apostrophe in its name. In Sanborns' case, it is due to the Spanish language not using apostrophes to indicate possession. Walgreens sold its interest in 1985. Currently, Sanborns is a unit of conglomerate Grupo Carso which itself is controlled by Carlos Slim, the fourth wealthiest billionaire in the world as of 2016. Sanborns controls
Grupo México 87.5 percent of Mexico's copper production and is the world's third-largest copper producer in the world. Grupo México has been in continual conflict with Local 65, the Cananea branch of the Mexican Mine Workers' Union (SNTMMSRM). During miners' strikes in January 2003 and October 2004, Grupo México responded with threats to close the Cananea mines. In 2004, Grupo México has also purchased a controlling interest in the Southern Peru Copper Corporation. Grupo Mexico acquired 54.2% equity interest in Southern Peru Copper Corporation from ASARCO LLC, a mining company operating in the United States. The SPCC equity sale is subject to