SANTIAGO, June 9 (Reuters) – Workers at BHP Group's Spence copper mine in Chile said on Wednesday they will extend negotiations with the company for a few more days to try and reach agreement on a new contract and avoid a strike at the operation, the union told Reuters.

The union representing 1,100 workers at the mine in Chile's northern Atacama Desert said it hoped to reach agreement by the end of Thursday. (Reporting by Fabian Cambero; Editing by Jacqueline Wong)