Zhejiang Corporation of China Telecom is one of 31 provincial companies that is a wholly owned subsidiary of China Telecom. It covers 11 cities with a population of 46 million. The document discusses the history and structure of China Telecom, provides details about Zhejiang Corporation including its assets, customers, and business lines. It describes how the corporation implemented an enterprise data warehouse to centralize data, gain visibility and control over branches, and make optimal decisions based on shared customer analytics across the province.