| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|
| Australia | February 27, 2009 | Ratification: October 22, 2009 | January 1, 2010 | |
| Brunei Darussalam | February 27, 2009 | Ratification: October 29, 2009 | January 1, 2010 | |
| Cambodia | | Accession: November 5, 2010 | January 4, 2011 | |
| Lao People's Democratic Republic | | | January 1, 2011 | |
| Malaysia | February 27, 2009 | Ratification: December 3, 2009 | January 1, 2010 | |
| New Zealand | February 27, 2009 | Ratification: July 22, 2009 | January 1, 2010 | |
| Philippines | February 27, 2009 | Ratification: October 21, 2009 | January 1, 2010 | |
| Singapore | February 27, 2009 | Ratification: August 5, 2009 | January 1, 2010 | |
| Thailand | February 27, 2009 | Ratification: January 11, 2010 | March 12, 2010 | |
| Viet Nam | February 27, 2009 | Ratification: October 30, 2009 | January 1, 2010 | |
