Kit Kat, Britain's biggest-selling chocolate biscuit, will bear the Fairtrade logo from mid-January.The biscuits, made by Nestle...have been Fairtrade certified, with more than 6,000 farmers in west Africa, set to get a better price for cocoa...Harriet Lamb, of the Fairtrade Foundation, estimated the Ivory Coast farmers would receive hundreds of thousands of pounds more next year...David Rennie, managing director of Nestle Confectionery, said..."UK consumers are increasingly interested in how we source and manufacture their favourite products and certifying our largest and most iconic brand is one of the ways in which we are committing to improving the lives of as many cocoa farming families as possible." [also refers to Cadburys]