Po Sang Bank was a bank

Bank

A bank is a financial institution that serves as a financial intermediary. The term "bank" may refer to one of several related types of entities:...

 established in 1949 in Hong Kong

Hong Kong

Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

. All other banks operated by the Bank of China

Bank of China

Bank of China Limited is one of the big four state-owned commercial banks of the People's Republic of China. It was founded in 1912 by the Government of the Republic of China, to replace the Government Bank of Imperial China. It is the oldest bank in China...

 in the territory were merged into it in 2001, and the bank was renamed Bank of China (Hong Kong)

Bank of China (Hong Kong)

Bank of China Limited is the second-largest commercial banking group in Hong Kong in terms of assets and customer deposits, with more than 300 branches in Hong Kong. It was established on 1 October 2001 from a merger of 12 subsidiaries and associates of the Bank of China in Hong Kong, and listed...

.

One branch of the Po Sang was involved in what was then the largest holdup in the history of Hong Kong

Hong Kong

Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

in 1974 and another in 1979 (and later involved HKP officer and SDU member Yee Wai-ming).