SANTIAGO, June 7 (Reuters) - Chilean state-run miner

Codelco said on Friday that it had reached a collective contract

agreement with the union representing workers at its Andina mine

ahead of schedule, averting the threat of a strike at the site.

At the end of May, Codelco wrapped up negotiations with two

other unions at the mine.

The three-year agreement with union Suplant will go into

effect in August and applies to more than 170 employees.

The company did not give financial details of the new

agreement.

Last year, the mine churned out 164,500 metric tons of

copper.