This is how the market looks in
Percentage adult smokers
According to the Thematic Household Survey Report No. 53 released by Census and Statistics Department on November 8, 2013, 10.7% of the population aged 15 and above smoked daily.
LHP status (legality, availability etc)
E-cigarettes with nicotine are currently banned as unauthorized medicines. The government is reportedly considering prohibiting non-nicotine e-cigarettes as well. (ref 1); (ref 2). For more information on e-cigarette laws and regulations in Hong Kong and elsewhere, this site provides some insight, although factasia.org cannot vouch for accuracy or currency.
Currently, taxes account for 69% of the retail price of a pack of cigarettes. The government is mulling doubling the rate. To compare tax rates on a country by country basis, this WHO site, although somewhat out of date, provides some insight.
Price of a pack
A pack of 20 sticks currently costs around HK$55
Illicit cigarettes accounted for 33.6% of total consumption in 2013, according to Oxford Economics
Packaging and labelling requirements
50% of a cigarette pack is covered by graphic and text health warnings in English and Chinese (ref). Hong Kong is not debating plain packaging at the moment
Want help to quit smoking in Hong Kong? Click here.