
SANTIAGO, April 29 (Reuters) - Copper output from Chile's state-run Codelco rose 22% in April compared to the same period a year before, Chairman Maximo Pacheco said on Tuesday.
He added that he is optimistic on securing the approval of China regulators for a joint venture with lithium producer SQM, and that the Codelco board will select a partner for the Maricunga lithium project within the coming weeks or months, after receiving binding offers from global companies in March.