Flap5, I was a resident of Hong Kong for 33 years. They do issue Permanent ID cards to non Chinese residents if you can prove residency for more than 7 years.
[1] Schedule 1 to the Immigration Ordinance (Cap. 115) states that:
2. Permanent resident of the Hong Kong Special Administrative Region
A person who is within one of the following categories is a permanent resident of the Hong Kong Special Administrative Region-
(a) A Chinese citizen born in Hong Kong before or after the establishment of the Hong Kong Special Administrative Region. (Replaced L.N. 192 of 1999. Amended L.N. 84 of 2002)
(b) A Chinese citizen who has ordinarily resided in Hong Kong for a continuous period of not less than 7 years before or after the establishment of the Hong Kong Special Administrative Region.
(c) A person of Chinese nationality born outside Hong Kong before or after the establishment of the Hong Kong Special Administrative Region to a parent who, at the time of birth of that person, was a Chinese citizen falling within category (a) or (b). (Replaced L.N. 192 of 1999)
(d) A person not of Chinese nationality who has entered Hong Kong with a valid travel document, has ordinarily resided in Hong Kong for a continuous period of not less than 7 years and has taken Hong Kong as his place of permanent residence before or after the establishment of the Hong Kong Special Administrative Region.
(e) A person under 21 years of age born in Hong Kong to a parent who is a permanent resident of the Hong Kong Special Administrative Region in category (d) before or after the establishment of the Hong Kong Special Administrative Region if at the time of his birth or at any later time before he attains 21 years of age, one of his parents has the right of abode in Hong Kong.
(f) A person other than those residents in categories (a) to (e), who, before the establishment of the Hong Kong Special Administrative Region, had the right of abode in Hong Kong only.