UK Stocks-Factors to watch on Aug. 21

Britain's FTSE 100 index is seen opening 16 points lower at 7,575 on Tuesday, according to financial bookmakers. * BHP: Global miner BHP posted a 33 percent jump in annual underlying profit on Tuesday on robust oil and copper prices and paid a record final dividend, although it pushed out the timing for some future cost savings. BHP is also assessing the impact of an ongoing outage at its Olympic dam copper smelter in South Australia. BHP is a little