Chile's exports of lithium carbonate reached $949 million in 2018 compared with $686 million the previous year as demand and prices for the key component in electric vehicle batteries continues to rise, the central bank said on Monday.
The value of exports of the metal from Chile reached $65.8 million in December, compared with a high of $97 million in August, $71 million in November and $45 million in December 2017.
Chile lies in the "lithium triangle" in Argentina, Bolivia and Chile, a region containing a large portion of the world's lithium reserves.
Top lithium producers Albemarle and SQM have both signed deals in recent years with the Chilean government to increase production in the lithium-rich Salar de Atacama.
Global demand for lithium is expected to quadruple by 2025.