Rvsm in chinese airspace
Hey
I reckon it is also worth mentioning that china implemented rvsm airspace as well, however do not switch to meters even though your altimeter system is capable of doing so, u have to use the conversion table found amongst other places, on the back of the applicable jeppesen enroute charts.
Also a look at the ATM - Air Traffic Management - publication with the supplement applicable to that specific region will not hurt - personally i always check contingency procedures in case of any malfunction that does not allow me to maintain the altitude thus requiring a driftdow, wx deviation, and loss of communications.
Hope it helps and happy contrails!
Baobab