More than a dozen nations have expressed their interest in joining the OAS.
The United States, the United Kingdom, Australia, Canada, Mexico and China all made the announcement this week.
The Philippines said it was willing to participate in the upcoming ministerial conference on OAS membership if the organization’s chairmen and presidents agreed.
The Philippine government said it has been looking for ways to join since it was granted membership in 1995, after the Organization for Economic Cooperation and Development (OECD) took over the organization from the United Nations.
The country has also sought to join international organizations like the World Bank and the World Trade Organization, as well as its own.
However, it remains to be seen whether the Philippines will be able to participate fully.
The OAS has been trying to expand its membership to more countries.
In February, it announced that Argentina, the Dominican Republic, Guatemala and the Dominican republic would be added to the group.
The new member countries will join in 2019.
It is unclear whether the countries that have already been added will join the group this year.