Currently, Mercosur is composed of four full members, five associated countries and two observer countries:
Guyana and Suriname signed framework agreements with Mercosur in July 2013 to become associate states. These agreements will enter into force following their ratification, which is subject to legislate approval in each state.
Venezuela applied for membership, but its entry has not been ratified by Paraguay, although it was ratified by Argentina, Brazil and Uruguay. However, in June 2012 Paraguay was suspended from Mercosur for an alleged coup d'état and the violation of the Democratic Clause of Mercosur, so Venezuela's admission, already approved by the remaining members, became effective on July 31. Venezuela is considered a key member of the Mercosur due to its energy resources, including natural gas and oil. Venezuela is also an important economic market for Brazil because of a favorable balance of trade.
The process was approved by the Brazilian Government, the Chamber of Deputies and the Senate. In May 2007, the Brazilian Senate asked Venezuela to reconsider the non-renewal of RCTV's license, an oppositionist television network. Venezuelan president Hugo Chávez responded by accusing the Brazilian Congress of being subservient to interests of the United States. The leader of the Brazilian Social Democracy Party in the Senate, senator Arthur Virgílio, stated that the party will try to prevent Venezuela's entry in Mercosur. On December 18, 2008, the Brazilian Chamber of Deputies approved by 265 votes, 61 against and 6 abstentions, Venezuela's bid for membership in Mercosur. The bill was forwarded to the Brazilian Senate, where it was still pending as of 31 May 2009, though Brazilian President Luiz Inácio Lula da Silva said he expected final approval by September. However, some members of the Senate condemned Hugo Chávez's alleged attacks on freedom of the press and expression in Venezuela. One senator Flexa Ribeiro said, "The Brazilian Senate needs to send a strong message in support of the reestablishment of full democracy in Venezuela." The decision could further delay Venezuela's entry into Mercosur.