Six Mexican coal miners were killed on Aug. 3 when some 100 tons of coal and rock collapsed in a mine operated by Altos Hornos de México S.A. de C.V. (AHMSA) in Barroterán community, Progreso municipality, in the northern state of Coahuila. One miner was trapped but survived with minor injuries; he was rescued about an hour after the collapse. The other 287 workers in the mine escaped without injuries. Some workers thought a methane explosion caused the accident, but management attributed it to "a pocket of methane gas," not an explosion.

The Pueblo Viejo gold mine in Cotuí in the Dominican Republic's central province of Sánchez Ramírez is starting operations this August, Jamie Sokalsky, CEO of the Toronto-based Barrick Gold Corporation, told investors on July 26. The new mine, on a site abandoned by the state enterprise Rosario Dominicana in 1999, will produce up to 125,000 ounces of gold this year and reach full capacity during 2013, Sokalsky said.

A group of 23 contract workers occupied the San Ambrosio Church in Vallenar, capital of the northern Chilean province of Huasco, on the morning of Aug. 4 to protest labor conditions at Pascua Lama, an open-pit gold, silver and copper mine being built in the Andes at the border between Argentina and Chile. Eight of the protesters took over the bell tower, where they shouted and banged on the metal structure to draw attention to their complaints against the mine's operator, the Toronto-based Barrick Gold Corporation.

More than 100 local residents were sickened by a spill of toxic copper concentrate at one of Peru's biggest mines Aug. 3. The Áncash regional health office said 140 people were treated for "irritative symptoms caused by the inhalation of toxins" after a pipeline carrying the concentrate under high pressure burst open in the village of Santa Rosa de Cajacay. Most of those affected had joined in efforts to prevent liquid copper slurry from reaching the nearby Río Fortaleza after the pipe linking the Antamina copper mine to the coast ruptured last week, said village mayor Hilario Morán. "Without taking into account the consequences, we pitched in to help," Morán told the Associated Press by phone. The people used absorbent fabric provided by the mine but were not given gloves or protective masks, admitted the mine's environmental director Antonio Mendoza. Shortly afterward, people became ill, vomiting, suffering headaches and nose bleeds.

Jamie Sokalsky, CEO of the Toronto-based Barrick Gold Corporation, announced on July 26 that major problems were delaying the opening of the company’s controversial Pascua Lama gold and silver mine, located in the Andes on both sides of the border between Argentina and Chile. The project will cost as much as $8 billion, he said, 60% more than previously projected, and gold won't be produced until mid-2014, a year later than expected. Barrick's stocks dropped quickly, although they recovered somewhat, ending the day down by about 4.32%. The mining giant’s shares have fallen by almost 33% since the beginning of the year. 

On July 20 soldiers, police and supposed "pro-mining activists" broke up an encampment that environmentalists and area residents had set up at Cerro Negro in the northwestern Argentine province of Catamarca to protest open-pit mining. The environmentalists--who came from Córdoba, La Rioja, Santa Fe, San Juan and Buenos Aires as well as from Catamarca—had camped out at the intersection of national highways 40 and 60 since July 9 to block trucks heading to the massive Bajo de la Alumbrera gold and copper deposit near the border with Chile. The protesters let other traffic pass.