That's thanks in part to the fact that tech companies like Intel, HP, Dell, Microsoft and Apple have made efforts to trace the source of metals used in their devices. An auditing system for smelters, the industrial facilities that process raw metals, also has been put in place. A certification system is in the works that would allow companies to certify some metals from Congo as "conflict free."
Other tech companies, however, like Nintendo, Canon, Nikon, Sharp and HTC, received low rankings from the group. Nintendo was the only company out of 24 ranked by the Enough Project that received a score of zero, for taking no steps to ensure that its electronics do not support armed groups in central Africa.
"Nintendo is, I believe, the only company that has basically refused to acknowledge the issue or demonstrate they are making any sort of effort on it," said Sasha Lezhnev, senior policy analyst at the Enough Project. "And this is despite a good two years of trying to get in contact with them."
In a statement issued to CNN, Nintendo said it "outsources the manufacture and assembly of all Nintendo products to our production partners and therefore is not directly involved in the sourcing of raw materials that are ultimately used in our products."
The company added: "We nonetheless take our social responsibilities as a global company very seriously and expect our production partners to do the same."
A Nintendo spokeswoman declined to comment on conflict minerals specifically.