The first PROSUR Summit, called the "Meeting of Presidents of South America", took place on 22 March 2019 in
Santiago, Chile. Eight South American countries taking part (
Argentina,
Brazil,
Chile,
Colombia,
Ecuador,
Guyana,
Paraguay and
Peru) signed the
Declaration of Santiago for the renewal and strengthening of South America, which begins the process of creating of PROSUR. The representatives of Bolivia, Suriname and Uruguay abstained from signing the declaration. Representatives from Venezuela were not invited to the summit in Santiago. The second PROSUR Summit took place on 12 December 2020; due to the
COVID-19 pandemic, it was held
virtually. The heads of state of Brazil, Chile, Colombia, Ecuador, Paraguay and Peru participated in the summit, with Prime Minister
Mark Phillips of Guyana and President
Luis Lacalle Pou of Uruguay invited as special guests. During the summit, the presidency pro tempore was transferred from its inaugural holder, Chilean President
Sebastián Piñera to Colombian President
Iván Duque. A presidential declaration was adopted to formalize the transfer and promote regional cooperation between its members in matters related to the pandemic. The third PROSUR summit was held in
Cartagena de Indias,
Colombia on 26–27 January 2022; the 2022 summit of the
Pacific Alliance was also held at the same date and venue. It was attended by five heads of state; its host President Iván Duque of Colombia, President
Mario Abdo Benítez of
Paraguay, President
Guillermo Lasso of
Ecuador, Prime Minister
Mark Phillips of
Guyana and President Sebastián Piñera of
Chile. In representation of their respective countries were Vice-president
Hamilton Mourão of
Brazil and Foreign Minister of Peru
Óscar Maúrtua. Argentina sent no delegation, while the President-elect of Chile,
Gabriel Boric, declined an invitation by President Sebastián Piñera to attend the two summits in Colombia. During the summit,
Mario Abdo Benítez succeeded Iván Duque as president pro tempore but attended the summit virtually due to having tested positive for COVID-19. There have also been numerous extraordinary meetings; ==President pro tempore==