major powers including the US, China and India are not part of the talks.
EU sent its own delegation. I'd say it's a pretty major power all things considered. A few other big economies on the list as well
list of participants
Angola, Australia, Austria, Bangladesh, Belgium, Brazil, Cambodia, Cameroon, Canada, Chile, Costa Rica, Denmark, Dominican Republic, European Union, Fiji, Finland, France, Germany, Ghana, Guatemala, Iceland, Ireland, Italy, Jamaica, Kiribati, Luxembourg, Maldives, Marshall Islands, Mauritius, Mexico, Mongolia, Netherlands, Nigeria, Norway, Palau, Panama, Papua New Guinea, Philippines, Portugal, Senegal, Singapore, Slovenia, Spain, Sri Lanka, Sweden, Switzerland, Trinidad and Tobago, Türkiye, Tuvalu, United Kingdom of Great Britain and Northern Ireland, United Republic of Tanzania, Uruguay, Vanuatu, Vietnam.
Also, disappointed/surprised at the lack of China there. They are on the forefront of renewable energy, and are set to benefit the most from decarbonization.