H share
H shares refer to the shares of companies incorporated in mainland China that are traded on the Hong [Kong Stock Exchange]. Many companies float their shares simultaneously on the Hong Kong market and one of the two mainland Chinese stock exchanges in Shanghai or Shenzhen, they are known as A+H companies.
H shares are also held by a nominee service company "HKSCC Nominees Limited", which was owned by Hong Kong Exchanges and Clearing.
Price discrepancies between the H shares and the A share counterparts of the same company are not uncommon. A shares generally trade at a premium to H shares as the People's Republic of China government restricts mainland Chinese people from investing abroad and foreigners from investing in the A-share markets in mainland China.
Tsingtao Brewery was the first enterprise to offer H-shares when it became the first Chinese firm listed on the Hong Kong Stock Exchange in June 1993.