Lithium carbonate, which can be used in electric car batteries, has successfully been produced from mines in Cornwall and Scotland.
The announcement was made by the Faraday Battery Challenge-funded project, Li4UK, a consortium comprising Wardell Armstrong International Limited, The Natural History Museum and Cornish Lithium Ltd.
It is the first time that lithium carbonate has been produced from UK sources and could have a significant impact on the Cornish economy.
Cornish Lithium CEO, Jeremy Wrathall, said: “Given the potential that has been established by this project to exploit lithium resources in Cornwall, it is possible that the UK could produce a significant percentage of its lithium demand domestically; thus creating a vertically-integrated supply chain and generating additional value for the UK economy.
“Cornwall also provides access to renewable energy from solar and wind, and offers established infrastructure such as rail, road and port facilities – which represent a considerable advantage over other European lithium projects.”