The Basic Law of the Hong Kong Special Administrative Region of the People’s Republic of China (Adopted at the Third Session of the Seventh National People’s Congress on April 4, 1990) 12 Instrument A101 Article 9 In addition to the Chinese language, English may also be used as an official language by the executive authorities, legislature and judiciary of the Hong Kong Special Administrative Region. Article 10 Apart from displaying the national flag and national emblem of the People’s Republic of China, the Hong Kong Special Administrative Region may also use a regional flag and regional emblem. The regional flag of the Hong Kong Special Administrative Region is a red flag with a bauhinia highlighted by five star-tipped stamens. The regional emblem of the Hong Kong Special Administrative Region is a bauhinia in the centre highlighted by five star-tipped stamens and encircled by the words “Hong Kong Special Administrative Region of the People’s Republic of China” in Chinese and “HONG KONG” in English. Article 11 In accordance with Article 31 of the Constitution of the People’s Republic of China, the systems and policies practised in the Hong Kong Special Administrative Region, including the social and economic systems, the system for safeguarding the fundamental rights and freedoms of its residents, the executive, legislative and judicial systems, and the relevant policies, shall be based on the provisions of this Law. No law enacted by the legislature of the Hong Kong Special Administrative Region shall contravene this Law.