Bank of China Limited (BOC) is one of the big four state-owned commercial banks of the People's Republic of China. From its establishment until 1942, it issued banknotes on behalf of the Central Government along with the "Big Four" banks of the period: the Central Bank of China, Farmers Bank of China and Bank of Communications. Although it initially functioned as the Chinese central bank, it was replaced by the Central Bank of China in 1928. Subsequently, it became a purely commercial bank.
It is the 2nd largest lender in China overall, and the 8th largest bank in the world by market capitalization value. Once 100% owned by the central government, via Central Huijin Investment and National Council for Social Security Fund (SSF).