“Apple published on Thursday its supplier responsibility report, an annual audit of the contract workers who produce and assemble its iPhones, iPads and other hardware in factories outside the United States,” Brian X. Chen reports for The New York Times.

“Apple said that had it confirmed that its suppliers did not use tantalum, a type of metal commonly used in electronics, containing any conflict minerals — minerals that come from areas engaged in warfare,” Chen reports. “The conflict-minerals debate centers on the Democratic Republic of Congo, where some warlords have profited from the sale of ores containing tantalum, tungsten, tin and gold to component suppliers who make parts for electronics. A grass-roots campaign has been pressing technology giants to keep conflict minerals out of their supply chains.”

“The company said it had verified through third parties that the tantalum smelters used by its suppliers were conflict-free,” Chen reports. “It said it was pushing suppliers of tin, tungsten and gold to also use sources verified as conflict-free.”

Read more in the full article here.

Apple’s Supplier Responsibility Report is here.