1 MIN. DE LECTURA
RIO DE JANEIRO, Feb 23 (Reuters) - Workers at Brazilian miner Vale SA are on strike at nine units across the state of Minas Gerais in protest against not being paid a bonus, the local union said in a statement on Tuesday.
Vale confirmed the union was blocking the entrance of some mines in Minas Gerais and that it was negotiating for this blockade to be lifted.
Reporting by Stephen Eisenhammer