[2] The bank was established by Ma Kam-chan, a businessman from Kwangtung (now Guangdong), in 1937 after his family migrated to Hong Kong.

The bank largely relies on small-scale transactions and a high degree of customer service, providing more flexible solutions than larger lenders.

[5] The bank also has two safe deposit box offices in Quarry Bay and Whampoa, and lets non-customers use them.

[6] As the United States imposed sanctions on a number of Mainland and Hong Kong officials (under the Hong Kong Human Rights and Democracy Act and the Hong Kong Autonomy Act) in the wake of the 2019 protests and the imposition of the National Security Law many multinational banks were no longer able to offer their services to those named in the sanction lists.

This has increased the appeal of banks, such as Tai Sang, which do not operate outside the territory and therefore are less vulnerable to legal action for violating the sanctions.