Hong Kong

http://www.legislation.gov.hk/eng/index.htm
Bi-lingual Laws Information System (BLIS), maintained by the Ministry of Justice of Hong Kong (with searchable Database)

China

http://www.bfai.de/fdb-SE,MKT20050705112545,Google.html

Information on income tax for foreigners in China(German language)

http://english.mofcom.gov.cn/static/column/topic/lawsdata/chineselaw.html/1

Ministry of Commerce of the People’s Republic of China: useful information about corporate and business law
http://www.law-star.com/html/lawsearch.htm

Law database in Chinese language, published by China Legal Information Center

http://www.fdi.gov.cn/pub/FDI_EN/Laws/GeneralLawsandRegulations/BasicLaws/P020060620319004069971.pdf

Company Law of the Peope`s Republic of China

http://www.steuerschroeder.de/doppelbesteuerungsabkommen.html

double taxation treaties between Germany and other countries, including China.

http://english.tax861.gov.cn/zgszky/zgszky.htm

Overview over the Chinese taxation system

Beijing

http://english.tax861.gov.cn/

Website of the Beijing Local Taxation Bureaus

http://www.bjsat.gov.cn/en/index.jsp

Website of the Beijing Municipal Office State Administration of Taxation, P.R. China