I don't think volume in HK would be problematic though there would certainly be an issue for foreign shareholders.
For example, in the US tax exempt accts such as IRAs are unable to hold foreign currencies (and hence shares) as it requires margin privileges to do so and that is disallowed in such accts. Not to mention few retail brokers allow foreign holdings even in taxable accts w margin.
My best guess would be a primary listing in HK through an IPO w ADRs issued on the big board or NASDAQ in the US, which would nullify said concerns.
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