Beijing Zoo kept 1 bird in 1981 and set out to catch a group of wild birds in 1985. First reproduction at the zoo occurred in 1992.
It would seem reasonable to expect more zoos in PR China now exhibit and perhaps breed the species. Chimelong-Bird Park - in a thread from 2019 - was rumoured to have crested ibis, but not sure and no one has confirmed this rumour so far.