UK Stocks-Factors to watch on July 24

Britain's FTSE 100 index is seen opening 25 points higher at 7,681 on Tuesday, according to financial bookmakers. * BHP: The management at Chile's Escondida copper mine, the world's largest, said on Monday it would deliver its final labor contract offer to the labor union on Tuesday amid tense contract negotiations ahead of a possible strike. * BRITAIN-NORTHSEA: The British infrastructure arm of Kuwait's sovereign wealth fund said on Monday it had agreed to b