"The U.S. National Academy of Sciences (NAS) and the Chinese Academy of Sciences (CAS) will hold two meetings in 2014 as part of the first CAS-NAS Forum for New Leaders in Space Science. The first will be in Beijing from May 8-9 and the second from November 3-4 in the Los Angeles area. The forum "is designed to provide opportunities for a highly select group of young space scientists from China and the United States to discuss their research activities in an intimate and collegial environment," according to an announcement on the Space Studies Board (SSB) website."
Keith's note: There is no prohibition on the official webpage. on U.S participants in terms of their employment with or receipt of funding from NASA.