UPDATE 1-Strike impacts Freeport's Grasberg mine, workers 'resigned'

TORONTO, May 25 (Reuters) - Freeport McMoRan Inc said on Thursday that mining and milling rates at its Grasberg copper mine in Papua, Indonesia have been affected as some 9,000 workers stage an extended strike, and a "large number" of approximately 4,000 absentee workers were deemed to have resigned.