Members of the CACM:
Central American Common Market
The CACM is a trade agreement of currently 6 countries in Central America.
All member states comprise a total area of 499,000 km² and about 49.28 million people. This is 0.33% of the habitable area around the world and 0.63% of the world population. With an economic output of 254.35 billion US dollars annually, they represent around 0.30 percent of the global economy. The value of all exported goods of these 6 countries was 70.81 billion US dollars per year at last count.
Official website (Spanish): https://www.sica.int/