Q. Which country is supplier of majority of mined Cobalt, which is used in cathodes for lithium-ion batteries used in cell phones and Electric vehicles?
Answer: Democratic Republic of Congo (DRC)
Notes: Cobalt is a critical element for not only cell phones but also electric vehicles that might be good for the environment. Roughly 60% of mined cobalt is sourced from the Democratic Republic of Congo (DRC). Its continued availability is becoming an issue due to political environment of DRC.