| | Date | Participant | Action | Reference | Dignitary | Photo | | |
| /Treaties/2010/06/20100611 05-56 PM/Actions/1336503457536-WS-xviii-10a-Liechtenstein-.jpg | 08/05/2012 | Liechtenstein | Ratification | XVIII-10-b | H.E. Mr. Christian Wenaweser Ambassador Extraordinary and Plenipotentiary Permanent Representative of Liechtenstein |
| jpeg | Amendments on the crime of aggression to the Rome Statute of the International Criminal Court. |
| /Treaties/2010/10/20101011 05-46 PM/Actions/1336503299172-WS-xviii-10a-Liechtenstein-.jpg | 08/05/2012 | Liechtenstein | Ratification | XVIII-10-a | H.E. Mr. Christian Wenaweser Ambassador Extraodinary and Plenipotentiary Permanent Representative of Liechtenstein |
| jpeg | Amendment to article 8 of the Rome Statute of the International Criminal Court |
| /Treaties/2010/11/20101127 02-08 PM/Actions/1334936558302-xxvii-8-b-Seychelles-Ratif.jpg | 20/04/2012 | Seychelles | Ratification | XXVII-8-b | H.E. Mr. Ronald Jean Jumeau Ambassador Extraordinary and Plenipotentiary Permanent Representative of Seychelles |
| jpeg | Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization to the Convention on Biological Diversity |
| /Treaties/1998/06/19980618 06-14 PM/Actions/1334865095927-WS-Uruguay-Rat.jpg | 19/04/2012 | Uruguay | Ratification | XXV-4 | H.E. Mr. José Luis Cancela Ambassador Extraordinary and Plenipotentiary Permanent Representative of Uruguay |
| jpeg | Tampere Convention on the Provision of Telecommunication Resources for Disaster Mitigation and Relief Operations |
| /Treaties/1976/07/19760718 03-04 AM/Actions/1334864925015-WS iv-7 Uruguay Ratif.jpg | 19/04/2012 | Uruguay | Accession | IV-7 | H.E. Mr. José Luis Cancela Ambassador Extraordinary and Plenipotentiary Permanent Representative of Uruguay |
| jpeg | International Convention on the Suppression and Punishment of the Crime of Apartheid |
| /Treaties/2011/12/20111219 03-15 PM/Actions/1334762638386-WS-iv-11-d-Malta-signature.JPG | 18/04/2012 | Malta | Signature | IV-11-d | H.E. Mr. Christopher Grima Ambassador Extraordinary and Plenipotentiary and Permanent Representative of Malta |
| jpeg | Optional Protocol to the Convention on the Rights of the Child on a communications procedure |
| /Treaties/2002/12/20021218 02-38 AM/Actions/1334676070635-WS-iv-9-b-Phillippines-Acce.jpg | 17/04/2012 | Philippines | Accession | IV-9-b | H.E. Mr. Libran N. Cabactulan Ambassador Extraordinary and Plenipotentiary Permanent Representative of the Philippines |
| jpeg | Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment |
| /Treaties/1997/09/19970910 07-37 AM/Actions/1333989478808-WS-xxvi-4-Niue-Sign.jpg | 09/04/2012 | Niue | Signature | XXVI-4 | Mr. Talaititama Talaiti Member of the Niue Legislative Assembly |
| jpeg | Comprehensive Nuclear-Test-Ban Treaty |
| /Treaties/1998/07/19980717 06-33 PM/Actions/1333402734794-Guatemala.JPG | 02/04/2012 | Guatemala | Accession | XVIII-10 | H. E. Mr. Harold Caballeros Minister of Foreign Affairs of Guatemala |
| jpeg | Rome Statute of the International Criminal Court |
| /Treaties/2004/02/20040217 05-46 AM/Actions/1332965663776-WS-xxvii-5b-Lithuania-Accep.jpg | 28/03/2012 | Lithuania | Acceptance | XXVII-5-b | H.E. Mr. Dalius Čekuolis Ambassador Extraordinary and Plenipotentiary Permanent Representative of the Republic of Lithuania |
| jpeg | Amendments to Articles 25 and 26 of the Convention on the Protection and Use of Transboundary Watercourses and International Lakes |