Solution:
● The G20 comprises 19 countries and the European Union .
● The 19 countries are Argentina, Australia, Brazil, Canada, China, Germany, France, India , Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, the United Kingdom and the United States.
● The G20 is the premier forum for international economic cooperation.
● Saudi Arabia hosted the 2020 G20 summit.
● It is headquartered at Mexico.
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