Germany's largest chain of coffee shops, Tchibo , is preparing to open its third UK branch in a London suburb next week. The outlet will compliment the shops already in Slough and Romford, which were opened in November of last year. Unfazed by the market dominance of US coffee shop chains such as Starbucks, officials at the company commented: "Things have been going so well - we feel encouraged to open a third shop in Sutton next week."