The IEA's move comes as countries escalate efforts to cut emissions.

The funding is intended to support the construction of the second lithium concentrate production plant at the Grota do Cirilo site.

A group representing UK pension funds has raised concerns about the water management at Oyu Tolgoi.

Kuvimba holds some of Zimbabwe’s best mining assets, which were once owned by a company controlled by US- and UK-sanctioned tycoon Kudakwashe Tagwirei.

The Savannah mine was part of a wider probe last year by Portuguese prosecutors into alleged illegalities in lithium and "green" hydrogen deals.

The top 10 solutions will receive a $25,000 each, become part of the Acceleration Program, and benefit from mentoring.

Lithium is important for the e-scooter maker, as it plans to locally produce lithium-ion batteries used in electric vehicles.