11 January: President
Fernando Collor de Mello signs Decree No. 1, also known as the Royalties Law, which regulates the payment of royalties to municipalities producing ore and electricity.[4][5]
26 March: Argentina, Brazil, Uruguay and Paraguay sign the
Treaty of Asunción, establishing the South Common Market (
Mercosur is its acronym in Spanish).[7]
11 January: President
Fernando Collor de Mello signs Decree No. 1, also known as the Royalties Law, which regulates the payment of royalties to municipalities producing ore and electricity.[4][5]
26 March: Argentina, Brazil, Uruguay and Paraguay sign the
Treaty of Asunción, establishing the South Common Market (
Mercosur is its acronym in Spanish).[7]