One of my dogs is on a raw diet I make myself with imported meat, organs and bones (US, Denmark, Brazil, Aus/NZ) from the butcher. You have to be very careful here with any meat from China - avoid at all costs, even though it's obviously much cheaper than anything imported.
My other dog is on partly homemade raw and partly K9 Natural frozen raw and/or Ziwipeak from NZ which is air-dried raw. K9 Natural is pretty expensive at $140-150 a 1kg bag and Ziwipeak is even more expensive at around $1200 for a 5 kg bag. Both are very high quality but go a long way.
The only other raw food I've seen here is BARF. I haven't seen Stella & Chewy in HK.
You won't find much of a raw food scene here - vets are dead set against it but that's because they make massive commissions from selling their prescription crappy doom nuggets. Some vets are more enlightened than others but there aren't many. PM me when you get here - I'm always interested to hook up with other raw feeders in HK as we don't number many!