For doing business in Hong Kong and China, these useful links are extracted as follows:
Hong Kong Government
Inland Revenue Department
http://www.ird.gov.hk
Companies Registry
http://www.cr.gov.hk/en/home/
Intellectual Property Department
http://www.ipd.gov.hk
Land Registry
http://www.landreg.gov.hk
Immigration Department
http://www.immd.gov.hk
Bilingual Laws Information System
http://www.blis.gov.hk
China Government
State Administration of Taxation
http://www.chinatax.gov.cn
State Administration For Industry & Commerce (“SAIC”) of the People’s Republic of China
http://www.saic.gov.cn
Ministry of Commerce (“MOC”)of the People’s Republic of China
http://english.mofcom.gov.cn
State Intellectual Property Office (“SIPO”) of the People’s Republic of China
http://www.sipo.gov.cn
Ministry of Foreign Affairs (“MOFA”) of the People’s Republic of China
http://www.fmprc.gov.cn