Kong, Paris, New York and Bermuda stock exchanges. HSBC Holdings acquired the rest of Midland Bank in June 1992. Hong Kong banking Under the HSBC brand, the bank maintains a network of around 220 branches throughout Hong Kong, from which it offers a wide range of financial products and services. For some time in the late 1980s and early 1990s, the bank was known by the name HongkongBank in its native city, although it now trades as HSBC. During that period, it also adopted the idiosyncratic practice of calling its ATMs Electronic Teller Card (ETC) machines. Headquarters The HSBC Hong Kong headquarters building is located in No 1 Queen's Road Central in the Central district on Hong Kong Island. It was also home to HSBC Holdings plc's headquarters until the latter firm's move to London to meet the requirements of the UK regulatory authorities after the acquisition of the Midland Bank in 1992. It was designed by British architect Norman, Lord Foster, and was the most expensive building in the world based on usable floor area at the time it was built. Hong Kong dollar bank notes HSBC is one of the three commercial banks which are authorised to issue banknotes for Hong Kong - the other two being the Bank of China (Hong Kong) and Standard Chartered Bank (Hong Kong). Of the total notes in circulation measured by value, HSBC is the most prolific issuer, its notes representing 67.7% of those in issue. Hong Kong is unusual in that it is one of the few countries or territories where commercial banks are still permitted to issue their own banknotes. Other Hong Kong operations Hang Seng Bank HSBC acquired a 62.14%, controlling interest in the local Hang Seng Bank in 1965 during a crisis of the latter. The Hang Seng Index for stock prices in Hong Kong is named after the Hang Seng Bank. PayMe In 2017, HSBC launched the PayMe brand and mobile app, which features as a social payment app in Hong Kong, available to all non-HSBC users. HSBC Insurance HSBC Insurance provides insurance products and services to international and local brokers, agents and direct customers in Hong Kong, mainland China, Macau, Singapore, India and Malaysia. Asia Pacific operations The Hongkong and Shanghai Banking Corporation maintains a network of around 600 offices in 20 countries in Asia Pacific, as well as owning of a number of HSBC banks