After the closure of the January 31, 2011, deadline to file objections to the Bolivian amendment to remove the ban on coca leaf chewing in the 1961 UN Single Convention on Narcotic Drugs, 18 objections were submitted. Although not required, four countries explicitly submitted their support: Spain, Ecuador, Venezuela and Costa Rica. Egypt, Macedonia and Colombia withdrew their objections.
In the table below the declarations of support, objection and withdrawal are listed chronologically:
|Member State||Objection||Support||Objection withdrawn||When||Document|
|Spain||x||January 13||Support Spain 
|Macedonia||x||January 17||Withdrawal Macedonia |
|United States||x||January 19||Objection US|
||x||January 20||Objection Sweden
|United Kingdom||x||January 21||Objection UK
|Latvia||x||January 24||Objection Latvia|
|Colombia||x||January 26||Withdrawal Colombia |
|Japan||x||January 26||Objection Japan|
|Canada||x||January 26||Objection Canada|
|Costa Rica||x||January 27||Support Costa Rica|
|Venezuela||x||January 28||Support Venezuela |
|Egypt||x||January 28||Withdrawal Egypt 
|France||x||January 28||Objection France|
|Germany||x||January 28||Objection Germany|
|Bulgaria||x||January 28||Objection Bulgaria|
|Slovakia||x||January 28||Objection Slovakia
|Denmark||x||January 28||Objection Denmark
|Estonia||x||January 28||Objection Estonia
|Italy||x||January 28||Objection Italy
|Ecuador||x||January 31||Support Ecuador|
|Mexico||x||January 31||Objection Mexico
|Russian Federation||x||January 31||Objection Russia
|Malaysia||x||January 31||Objection Malaysia
|Singapore||x||January 31||Objection Singapore
|Uruguay||x||January 31||Support Uruguay|
The official United Nations Treaty Collection related to Narcotic Drugs and Psychotropic Substances can be found here:
The site contains the formal registration of Depository Notifications, including ratifications, amendments, objections, declarations of support, etcetera:
Search in "Treaty reference" under "VI-18"
(VI-18 is the reference number for the 1961 Single Convention as amended by the 1972 Protocol)
Countries can still withdraw their objection.
 Spain did not officially file a memorandum of support to the UN, but this letter of the minister of Foreign Affairs of Spain makes clear that it fully supports the Bolivian amendment.
 Including the presidential declarations made at the Sixth Extraordinary Summit of the Bolivarian Alliance for the Peoples of Our America — Peoples’ Trade Agreement (ALBA-TCP), held in the city of Maracay, Bolivarian Republic of Venezuela, on 24 June 2009 (see annex) and at the Seventh Summit of ALBA-TCP, held in the city of Cochabamba, Plurinational State of Bolivia, on 17 October 2009 (see A/C.2/64/8), in which Antigua and Barbuda, Bolivia, Cuba, Dominica, Ecuador, Honduras, Nicaragua, Saint Vincent and the Grenadines, and Venezuela express their support for the proposal made by Bolivia to amend article 49, paragraphs 1 (c) and 2 (e), of the 1961 Single Convention on Narcotic Drugs, as amended by the Protocol amending the 1961 Single Convention on Narcotic Drugs (see E/2009/78).