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

About $250 million to $300 million in capital expenditure is still needed to finish infrastructure upgrades and increase production to 75,000 tons of copper and 15,000 tons of cobalt annually, according to Powch.

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

Shadows bloomed across the walls and multiplied in the stairwells, and as the light died it got bluer, painting everything around me a deep-sea cobalt.

From "Hollow City" by Ransom Riggs