That is what I was saying, China does not activelly chase someone for the other passport or citizenship. It is only an issue if the person present the other passport to Chinese agencies in legal settings. So in law, China does not recgonize dual citizenship, in practical terms, it is possible to enjoy benifit of a dual citizenship.He has both.
Pretty sure he has the HK SAR passport since that's what's required to issue his China entry card and for him to get through Chinese immigration... that and his HK ID card.
And of course he was never asked to relinquish his British passport despite his dual status as a British citizen and a permanent HK resident.