@Arizona Docent You're right, there don't seem to be any... Not in any AZA or other will known facilities at least. I assume you've seen the species during your travels to Europe?
@ThomasNotTom Yes but only (I think) at Le Parc Des Felins, which has both Indochinese and Amur. The first time I saw a pair (long, long ago) was at San Antonio Zoo. Based on appearance I think they were Palawan subspecies.