The agreement, signed by the Secretary of State for European Affairs, Inês Domingos, and the head of Monegasque diplomacy, Isabelle Berro-Amadei, foresees that Portugal and Monaco will intensify "the permanent dialogue between them, namely identifying the areas of privileged cooperation," and strengthen "partnerships in the fields of economy, trade, investment, science, oceans and the environment," among others that may be determined.

According to the text, the parties also commit to “promoting the development, presentation and implementation of projects of common interest, carried out within the framework of international organizations and existing initiatives”, and “visits at the political level” are also encouraged, with a view to “deepening bilateral relations and matters of common interest on the international agenda”.

On Thursday evening, upon arriving in Monaco, Marcelo Rebelo de Sousa had already highlighted, among the issues to be discussed with Albert II, the fight against climate change and the defense of the environment and oceans, lamenting that these matters have ceased to be a priority “in the last two years”, noting that “Monaco has been a constant supporter of Portugal” and its fight for the environment, the climate, and the oceans.

At the invitation of Prince Albert II, the President of the Republic is today making a State visit to Monaco, the first he has made to the Principality – and the first by a Portuguese Head of State – and one of the last of his term, which ends in about three and a half months (March 9, 2026). Marcelo was received this morning at the Prince's Palace of Monaco by Albert II, in a ceremony with military honors, hymns, and a review of the guard of honor, followed by an audience, exchange of decorations, official lunch, and the signing of a bilateral cooperation agreement.

In the afternoon, the President of the Republic will visit a photographic exhibition about King Carlos I, who was close to Prince Albert I, the great-great-grandfather of the current monarch, both sharing a passion for oceanography, and participate in the inauguration of a bust of the former Portuguese monarch in the Saint-Martin gardens, near the palace.

Following this, the Head of State will visit the Oceanographic Museum of Monaco, the same place where, at the end of the afternoon, he will host a reception for the Portuguese community in the Principality, after which he will return to Lisbon.