In the weekly press briefing on May 3, 2017, Chinese Foreign Ministry spokesman Geng Shuan, while replying to a question asking why Chinese delegates had shouted down the Chairman of the Kimberley Process Working Group Joint Meeting in Australia and disrupted proceedings, said "Our position on the participation of Taiwan in the activities of international organizations is clear and consistent, that is, we must follow the one-China principle. When the Kimberley Process started in 2003, the Chinese side reached an understanding with the process. China Taiwan has temporarily implemented the process certificate system in the name of "China Taipei Diamond Trade Entity". However, Taiwan is not a full member of the Kimberley Process and is not an observer and may not participate in the Subordinate Working Group Or committee meetings".He said inviting Taiwan violates the relevant rules of the process and "China's reasonable concern has not been respected". 

(Comment: While some sections of the Australian press reported the event, interestingly none of the Australian officials/delegates attending agreed to being quoted.)