UK Stocks-Factors to watch on April 27

April 27 (Reuters) - Britain's FTSE 100 index is seen opening 5 points higher on Friday, according to financial bookmakers. ** HSBC: A former HSBC Holdings Plc executive was sentenced to two years in prison on Thursday after he was found guilty by a jury of defrauding Cairn Energy Plc in a $3.5 billion currency trade in 2011. ** KAZ MINERALS: Kazakhstan-focused Kaz Minerals will scrap its secondary listing in Hong Kong because of a lack of appetite from investors, the company s