A fourth city in China has been identified as the location for future Apple stores, among the 25 stores Apple has promised to open in the country by the end of 2012. According to the Web site SinoCast Daily Business Beat, Apple has negotiated leases on two locations in Chengdu, a city of 11 million residents in the middle of the landmass that is China. Despite the city’s geographic isolation, it has become a center for technology, food, pharmaceuticals, machinery and other large companies, both foreign and domestic. Insiders say one Apple store might be located at The MIXC development east of city center opening with Phase I retail and office space in 2012. It will eventually include residential space, including a hotel. The Raffles Square development is a huge, four-tower office, hotel and retail development that was completed last year south of city center. There are two stores each in Shanghai and Beijing now, and a fifth store is planned for Hong Kong later this year.