BOGOTA, Aug 31 (Reuters) - The largest workers union at the Colombian coal mine Cerrejon walked out on strike on Monday afternoon, the union said, after its members voted overwhelmingly in support following a collapse in contract negotiations.
Some 99% of members of the Sintracarbon union who voted on possible strike action earlier this month backed it over arbitration.
Cerrejon, which is owned equally by BHP Group BHP.AX , Anglo American AAL.L and Glencore GLEN.L , has said it respects the decision by workers but called on the union to re-examine its salary offer.