EcoPro, a South Korean battery materials holding company, said Monday that it had invested $11 million for a 9 percent share in Green Eco Nickel, an Indonesian nickel smelter operated by Chinese battery materials firm GEM, to expand the supply of nickel, a crucial raw material for lithium-ion battery production. The Green Eco Nickel smelter, situated on Sulawesi Island in Indonesia, boasts annual production of approx...