Hi 32-20, fyi any decent fabric would not be sold in areas like the Sheung Wan market or Sham Shui Po. Those areas tend to sell mainland Chinese or lower quality fabrics only. For luxury European fabrics like Loro Piana, Zegna, etc you would need to have an existing relationship with the provider (leave sums of at least $50-100K HSD as a deposit). Sorry to break it to you!
I'm inclined to believe you.
I was in the South Bund Fabric Market in Shanghai today. I told myself I wouldn't buy anything on my first trip to the area, but I wasn't even remotely tempted. I was told by one vendor that they don't have anything without cashmere in it. Maybe throwing the word cashmere onto the label is just their way of saying "super happy auspicious sincere good fortune high quality" in English. In another vendor I covered the label and asked if there was cashmere in the fabric; was told no; showed the label, and was assured that a label is just a label and doesn't mean anything. Not in this market, for sure.
About half the "wool" stock is marked as "Super 880s" or "Super 220s." I did notice a catalogue with labels written entirely in Chinese. I'll have to research the relevant characters and see if these catalogues lie as enthusiastically.
Still, I'm holding out hope for some 100% wool with a low super number; I'm new to this fabric business, but my impression was that thicker, rougher fabrics (my preference) are cheaper, or more likely to be found in a low end retailer.