Could Chinese regulatory concerns have anything to do with it?...

Could Chinese regulatory concerns have anything to do with it?

https://www.livewiremarkets.com/wires/30386

"Blackmores share price has fallen over 10% which follows on the weakness from last week (down over 20%). We have made several enquiries to our industry sources and although we can't find anything concrete - anecdotal evidence suggests there is some concern over the regulatory situation in China (it's more about the threat to the Grey market C2C channel – the threat depends on a company’s exposure to this channel), and a general de-rating of high PE stocks."

I inquired as to whether these regulatory concerns were specific to Vitamins and Minerals, or if they could impact the grey market for infant formula also.  I was told that the impact of regulatory changes is hard to read, but could effect Vitamins and Minerals, and Infant Formula.

Sorry if this has already been discussed - I haven't been following the threads