Tesco Stores, a joint venture between UK supermarket operator Tesco and Malaysia's Sime Darby, is reportedly planning to expand its business with three new stores in Penang, Perak and Kedah. Tesco neither confirmed nor denied the report. "We have just opened our fourth store, in Mutiara Damansara, which marks the completion of the first phase of our expansion plans," Tesco's head of corporate affairs, Azlam Shah Alias, was quoted by Business Times as saying.