Mill workers at Primero Mining's San Dimas mine in Mexico have gone on strike over their bonus structure. The company said that the if the strike stretches on it could hurt production from the mine. The mill workers are one of three locals at the mine, all of whom are part of the National Mineworkers Union. The other two locals have accepted similar terms for their bonus structures. The company says that it is working to settle the dispute.
See "Primero says mill workers on strike at Mexico mine", Euan Rocha, Reuters, March 30, 2011