I'm from China, I've studied under 2 instructors, one in Shenzhen and one in Guangzhou, both teaches the high finger technique, and yes, Hanon is to chinese piano students, as english is to american first graders, there's really no way around it.
After much listening to 4 of the most famous chinese pianists, lang lang, yundi li, yuja wang, and wenyu shen, to honest, even though they are chinese, and I wish that I can always brag about the artistic excellency of my fellow countrymen, i really can't when it comes to playing classical piano, we chinese are good at making money, but not playing classic music soulfully, perhaps western art is just not our thing, because I'm pretty sure chinese performers still play traditional chinese music and instruments marvelously, have you guys ever listened to guzheng? there's a really good chinese wuxia movie that came out last year, directed by the internationally renown (for real) director yimou zhang, the soundtrack of the film is the kind of traditional chinese guzheng music I'm talking about, here's a youtube link for the entire soundtrack
I think traditional chinese guzheng music is more improvisational than classical western music, almost jazz like at times, in china we often say that drunk artists produce the best poems, same goes for music, it kinda reminds me of the likes of Miles Davis and Nat "King" Cole, with a splash of Late Debussy and Ravel for some reason.
Okay, enough of me advertising my country haha! sorry if you find my reply weird!
have a nice day all