| Governments participating in the CMC | |
| Members of the European Commission not individually represented in the CMC |
The CMC is co-sponsored by Brazil, Canada, Indonesia, the United Kingdom and the United States. Countries from every region in the world participate in the Challenge.
Participants
Australia
Bahrain
Brazil
Canada
Denmark
Egypt
European Commission
Iceland
Indonesia
Japan
Kenya
Kingdom of Saudi Arabia
Mozambique
Netherlands
Norway
Romania
Senegal
Sweden
United Arab Emirates
United Kingdom
United States