- Amendment to universal postal service price convention, of 09.07.2010
- Universal postal service price convention, of 10.07.2008
- Universal postal service price convention (21.4.2006)
- Universal Postal Service Price Convention (18.3.2004)
- Addendum to the Prices Convention (20.1.2003)
- Addendum to the Prices Convention (21.12.2001)
- Prices Convention of Universal Postal Service celebrated between the Directorate - General for Distribute Trades and Competition, The Instituto das Comunicações de Portugal and CTT - Correios de Portugal, S.A. (21.12.2000)
- Prices Convention celebrated between DGCC, ICP e CTT - Correios de Portugal (20.9.2000)