cobalt

Example Sentences

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The US is also negotiating a minerals deal with DR Congo to help gain access to the central African country's vast reserves of key metals such as cobalt, tantalum, lithium and copper.

From BBC • Apr. 6, 2026

After cobalt prices crashed in 2023, Chemaf’s founder put the company up for sale.

From The Wall Street Journal • Mar. 31, 2026

Caught in the middle is American mining company KoBold Metals, which uses AI to scour for copper, lithium, nickel and cobalt.

From The Wall Street Journal • Mar. 28, 2026

China currently dominates the global supply of lithium and cobalt, both of which are needed in batteries.

From Barron's • Mar. 28, 2026

And it was realized that workers in the cobalt mines in Saxony and in the uranium mines at Joachimsthal in Bohemia were subject to a disease of the lungs, later identified as cancer.

From "Silent Spring" by Rachel Carson