She served as
Prime Minister and
Minister of Planning and Finance São Tomé and Príncipe from 8 June 2005 to 21 April 2006. Silveira, the country's second female prime minister, is a member of the
Movement for the Liberation of São Tomé and Príncipe-Social Democratic Party (MLSTP-PSD) and was a member of the party executive board. Silveira declared that macroeconomic stability was her priority and made her mark by among others resolving the wage dispute with the unions in the public sector, securing assistance from the IMF and obtaining an agreement with Angola on cooperation in the oil sector. ==Succession==