In other news, hell froze over.
"Apple's increased transparency about its suppliers is becoming a hallmark of Tim Cook's leadership at the company," Greenpeace Energy Campaigner Tom Dowdall said in a statement. "Apple has flexed its muscles in the past to push suppliers to remove hazardous substances from products and provide more renewable energy for data centers, and it is proving the same model can work to reduce the use of conflict minerals."
Good to see that Greenpeace has halted its previous tactic of calling out Apple rather than anyone else, just to get headlines, and especially good to see Cook living up to his word on this important stuff.
Apple's Progress Report (PDF) is here: http://images.apple.com/supplier-responsibility/pdf/Apple_SR_2014_Progress_Report.pdf