An agreement between the American Samoa Chamber of Commerce and the Samoa Association of Manufacturers and Exporters aims to get the support of both governments to establish a common customs treaty.
This will govern the import and export of goods between the two countries.
The agreement is to be presented at the Samoa talks to be held in Apia this week.
The President of the American Samoa Chamber David Robinson says that the agreement was developed with the idea of increasing the market size and strengthening the ability to build economic activity in both countries.
Mr Robinson says that the Economic Integration Agreement is being presented at talks being held in Apia this week.