Chinese President Xi Jinping addresses China’s new concept of nuclear security with four “equal emphasis” at the third Nuclear Security Summit, and makes four commitments to strengthen nuclear security in the future. To convert President Xi’s political commitments into practical, sustainable reality, China should take further steps to install a complete, reliable, and effective security system to ensure that all its nuclear materials and nuclear facilities are effectively protected against the full spectrum of plausible terrorist and criminal threats. This paper suggests the following measures be taken to improve China’s existing nuclear security system, including updating and clarifying the requirements for a national level DBT; updating and enforcing existing regulations; further promoting nuclear security culture; balancing the costs of nuclear security, and further strengthening international cooperation on nuclear security.

Lately, China’s nuclear industry is entering a new round of fast development.  China pursues reprocessing of civilian spent fuel and recycling the plutonium thus gained in mixed-oxide (MOX) fuel for light-water reactors (LWR) and in fast breeder reactors. At a time when plutonium recycling programs are being phased out worldwide, this paper will examine whether plutonium recycling makes sense for China, taking into account economic costs, nuclear energy security, and environmental aspects.