Apple Inc has begun storing personal data for some Chinese users on servers provided by China Telecom , marking the first time that the company has stored user data on mainland Chinese soil. Apple attributed the move to an effort to improve the speed and reliability of its service. It also represents a departure from the policies of some technology companies, notably Google Inc , which has long refused to build data centers in China due to censorship and privacy concerns. All data stored with China Telecom, as with all data center providers worldwide, will be encrypted, Apple said in a statement on Friday.