The Pérez-Guerrero Trust Fund for South-South Cooperation (PGTF) was established by the United Nations in 1983 as the UNDP Trust Fund for Economic and Technical Cooperation among Developing Countries (General Assembly resolution 38/201). Managed by the UN Office for South-South Cooperation on behalf of the Group of 77 (G-77), the Trust Fund provides catalytic financial support for cooperative projects carried out by three or more developing-country members of the G-77. In 1986, the Trust Fund was renamed after the late Venezuelan official, Manuel Pérez-Guerrero.