However, there is more than one reason for why China could be pursuing this policy, and not all of them have to do with Obama or the National Security Agency (NSA).
1. It's Not About the Tank Man, Really
It is no secret that China's "Golden Shield," more widely known in the media as the "great firewall of China" can be easily bypassed by both web proxies and virtual private network (VPN) tools. In fact, some social networking and blogging platforms such as Google's Blogspot are not even banned in China.
2. Move Over, Apple, We Have an IPO to Run
Chinese companies such as cell phone manufacturer Xiaomi, which has developed an Android version completely independent of Google, and worldwide marketplace Alibaba are rapidly expanding their global reach. Meanwhile, forcing Apple and Google to build and maintain data centers in China, as well as having them disclose their encryption keys to the Chinese government, would not only force them to incur extra costs, but open them to probing by the US government.
The issue appears to matter little for the Chinese government, but it would put a squeeze on US tech firms which are trying to expand their reach abroad. Particularly as Apple's iPhone 6 has taken first place in Chinese smartphone sales and Google is trying to re-enter China after a 2010 spat with the Chinese government caused the company to essentially exit the market.
3. Yeah, We'll Keep Our Information Safe… Right Here
For example, if a government official, as they often do, use their cell phone for work, leaked information may fall into the NSA's hands in real time as traffic for cloud storage is currently not guarded by the firewall. Hacks such as the 2014 "Celebgate," in which hundreds of private pictures of celebrities were leaked following a hack of Apple's cloud storage service, are even less funny for governments, which have billions of documents that they need to keep secure.
Although Obama may think that "tech companies are not going to be willing to" give their encrypted data to China, as they have given them to US intelligence agencies, China has given them a choice. Companies can either do business in China, as they have in the US, but admit that their data is not secure, or Chinese companies will be happy to take over their market share.