It's about mindset; particularly in management.
And that is precisely where I have found factories under mainland management wanting. It starts with the mindset (#1 - #5 are "money") and the rot continues from there.
Hence I find your comments so remarkable.
This was the difference between our Western factories and this Guangzhou site. It's why our Western factories couldn't produce the quality I wanted while the Chinese could.
This was in (say) 2018 and still continues today?
I take a different view. If it takes such a special supplier to make your stuff and you rely on them you paint yourself into a corner.
So instead I design based upon understanding the potential quality issues your average Chinese factory may introduce. Plus, items must be available from multiple suppliers in the supply chain. If that means using a plastic dustcap with an attached foam strip, instead of paper and getting
very slightly worse objective and subjective performance, so be it.
As a result, if one factory for whatever reasons no longer is available (e.g. the owner lost it to the Triads over gambling debt and the new management is culling customers to maximise short term profit) production is down for a weeks at the most.
It's a different mind set I guess, highly pragmatic, the way most Chinese management operates.
Thor