"After the handover to Chinese sovereignty in 1997, Hong Kong continued to maintain its own passport separate from that of the standard PRC issue. Replacing the erstwhile British National (Overseas) passport, the HKSAR passport inherited much of the privileges afforded to UK passport holders: free access to commonwealth nations such as Canada and New Zealand as well as the European Schengen area."
http://shanghaiist.com/2014/07/01/why_hong_kongs_passport_mi...
"After the handover to Chinese sovereignty in 1997, Hong Kong continued to maintain its own passport separate from that of the standard PRC issue. Replacing the erstwhile British National (Overseas) passport, the HKSAR passport inherited much of the privileges afforded to UK passport holders: free access to commonwealth nations such as Canada and New Zealand as well as the European Schengen area."