1864
Banco Nacional Ultramarino is established in Lisbon, Portugal, with the initial objective of acting as an issuing bank in the Portuguese overseas territories and to contribute to their economic development.
1864 - 1912
BNU expands its network in Portugal, in overseas territories and foreign countries.
Branches were open in Angola and Cabo Verde (1865), S. Tome, Goa and Mozambique (1868), Macau and Guine Bissau (1902) and Timor (1912) and BNU becomes the issuing bank in these territories.
1974
Banco Nacional Ultramarino was nationalized.
1988
On July 5th 1988, Caixa Geral de Depositos becames the majority shareholder of Banco Nacional Ultramarino S.A. the Republic of Portugal is the only other shareholder.
1995
Confirming the Bank as a notes issuer at least until 2010.
2000
In April, an agreement was signed with the Administration of Macau Special Administrative Region of the Peopleˇs Republic of China whereby the Bank remains an Agent of the Treasury.
March 2001
On March 28th, 2001 the merger of Banco Nacional Ultramarino and Caixa Geral de Depositos, through incorporation of Banco Nacional Ultramarino into Caixa Geral de Depositos was announced.
As provided by the merger plan, the Macau Branch of Banco Nacional Ultramarino will become a bank incorporated in Macau SAR, retaining the name Banco Nacional Ultramarino S.A. and being a wholly-owned subsidiary of Caixa Geral de Depositos.
Banco Nacional Ultramarino S.A. will remain a notes issuer and Agent of the Treasury.
July 2001
In accordance with the merger of Banco Nacional Ultramarino and Caixa Geral de Depositos by incorporation of BNU into CGD, the Macau Branch of Banco Nacional Ultramarino became, as of July 1, 2001, a wholly-owned subsidiary of Caixa Geral de Depositos, incorporated in Macau.
Banco Nacional Ultramarino has issued Macau Patacas since 1905.
 BNU in 1926
Banco Nacional Ultramarino appears on the following banknote(s):
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