From being secretive of their future launch plans, China is now publishing them.

http://www.go-taikonauts.com/en/chin...-opportunities

In May, China Great Wall Industries published on its website 14 payload opportunities on its upcoming Long March rocket flights.
The offers are all for the 2020-2021 time period and comprise different launch configurations: as a shared ride, as a dedicated mission or within a cluster.
and the launches

http://www.cgwic.com/Launchservice/piggyback.html