There have been more than a few mass stabbings in China where lots of kids, from people who aren’t particularly trained in knifing people. There was the Wuxi vocational school stabbing in 2024 where 8 people were killed, there is a long list of school attacks, most of them are stabbings: https://en.wikipedia.org/wiki/List_of_school_attacks_in_Chin...
Note that China does have a pretty low homicide rate, probably since guns are so hard to get ahold of (death penalty for even producing guns in backyard workshops).
There was also the Kunming train station mass stabbing a decade or so ago, killing 31 people. https://en.wikipedia.org/wiki/2014_Kunming_attack
Note that China does have a pretty low homicide rate, probably since guns are so hard to get ahold of (death penalty for even producing guns in backyard workshops).