Apple kicked out suppliers who refused to participate in the annual audit or "did not otherwise meet our requirements for the responsible sourcing of minerals."
Apple has said it aims to make all of its iPhones, iPads and other products entirely from renewable or recycled materials and stop mining the earth for anything.
Apple today released its 11th annual audit of its suppliers, which reports that 98 percent of its 705 suppliers were adhering to the rules regarding 60-hour work weeks.