I am one of the nationalities that require to apply for a Hong Kong Visa. I am coming to China for a business meeting for 2 months and i am planning to go to Hong kong every weekend for shopping.
When i want to apply for China Mainland Visa at the Chinese embassy in my country it takes about 2 days but i think if i ask for a hong kong visa it may take up to one months i am not sure. Therefore if i get a 3 months China Mainland visa with Multiple entries, Is there any Hong Kong office in Shenzhen that is able to issue Hong Kong Visas for foreigners??

The Government of Hong Kong allows citizens of specific countries/territories to travel to Hong Kong for tourism or business for up to 90 days or 30 days without having to obtain a visa. Under the One Country, Two Systems policy, Hong Kong maintains its immigration and visa policy independently from the rest of China. Consequently, entering Hong Kong from other parts of China requires passing through an immigration checkpoint. Whilst Macao and Taiwan residents have visa-free/visa-on-arrival access for short visits to Hong Kong, Mainland China residents need to go through a more rigorous approval system before they can obtain a permit to enter Hong Kong.

Due to the historical background of Hong Kong, immigration status in Hong Kong is determined by a combination of both nationality and residence status. Therefore, even a Chinese national with the right of abode in Hong Kong has a slightly different status to a foreign national with the right of abode in Hong Kong as well (since the former can never lose ROA status while the latter can lose it if he does not enter Hong Kong for a period of 36 months). At the same time, a foreign national with the right of abode in Hong Kong has a preferential immigration status to a Chinese national without the right of abode in Hong Kong, as the former can remain in Hong Kong indefinitely, while the latter has to have his immigration status reassessed whenever his visa/permit expires.

Unlimited access to Hong Kong

Possession of one of the following documents is sufficient to demonstrate the holder’s right of abode in Hong Kong, and consequently his unhindered access to the territory:

1. Hong Kong Permanent Identity Card
2. Hong Kong Special Administrative Region Passport
3. British National (Overseas) passport
4. Hong Kong Certificate of Identity (all of which have expired 30 June 2007)
5. Hong Kong Re-entry permit (for entry from the Mainland of China and the region of Macao only)
6. Hong Kong Seaman’s Identity Book
7. Hong Kong Document of Identity for Visa Purposes provided that the document is valid or the holder’s limit of stay in Hong Kong has not expired
8. Travel documents stating either Holder’s eligibility for Hong Kong permanent identity card verified or The holder of this travel document has the right to land in Hong Kong. (Section 2AAA, Immigration Ordinance, Cap. 115, Laws of Hong Kong)

http://www.immd.gov.hk/ehtml/hkvisas_4.htm