Cobalt for "goblin ore") for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the "kobold". Today, some cobalt is produced specifically from one of a number of metallic-lustered ores, such as for example cobaltite (CoAsS). The element is however more usually produced as a by-product of copper and nickel mining. The copper belt in the Democratic Republic of the Congo
Zhejiang Huayou Cobalt buying cobalt mined by hand in DRC entirely. Zhejiang Huayou Cobalt Huayou Cobalt Co., Ltd is primarily a supplier of cobalt, including cobalt tetroxide, cobalt oxide, cobalt carbonate, cobalt hydroxide, cobalt oxalate, cobalt sulfate, and cobalt monoxide. It is headquartered in the Tongxiang Economic Development Zone of Zhejiang, China. A subsidiary, Congo DongFang International Mining, has been involved in several controversies around sourcing of cobalt in the Democratic Republic of the Congo. According to a joint Amnesty International and African Resources Watch report, Congo DongFang International Mining, a subsidiary of Huayou Cobalt, sources cobalt from primitive "artisanal" mines in the