Workers at Antofagasta's Centinela mine reject contract offer, pave way for strike

​Workers ‌from two unions ‌at Antofagasta Minerals' ‌Centinela copper ⁠mine ​in ⁠northern Chile rejected ⁠on Monday ​a collective ⁠contract offered ⁠by ​the company, ⁠paving the ⁠way for ⁠a strike.