SANTIAGO Aug 31 (Reuters) - A Chilean union that represents copper mine workers rejected a move by Freeport-McMoRan Inc to drastically cut staff at its El Abra mine and said on Monday it was considering action.
Take context from the input text and decide on the accurate relationship between 'El Abra mine' and 'Freeport-McMoRan' from the options provided.
Options: chairperson, operator, industry, owned by