Bloomberg:

Ten Apple products — including the iPad, iPad Mini, MacBook Air and MacBook Pro — were omitted from a final government procurement list distributed in July, according to officials who read it and asked not to be identified because the information isn’t public. The models were on a June version of the list drafted by the National Development and Reform Commission and Ministry of Finance, the officials said.

Apple is the latest U.S. technology company to be excluded from Chinese government purchases amid escalating tensions between the countries over claims of hacking and cyberspying. China’s procurement agency told departments to stop buying antivirus software from Symantec Corp. (SYMC) and Kaspersky Lab, while Microsoft Corp. (MSFT) was shut out of a government purchase of energy-efficient computers.

Why is this happening? This quote says it all:

“When the government stops the procurement of products, it sends a signal to corporates and semi-government bodies,” said Mark Po, an analyst with UOB Kay Hian Ltd. in Hong Kong. “The Chinese government wants to make sure that overseas companies shouldn’t have too much influence in China.”