In 2018, the original framework agreement on the establishment of the International Solar Alliance was amended to extend the scope of its membership to

The 2018 amendment opened International Solar Alliance membership to all member states of the United Nations.

Earlier membership was limited to countries lying fully or partly between the two tropics.

Restricting it to the SAARC countries was never the aim of the amendment.

It was not confined to the countries of the Middle East either.

Sub Saharan Africa alone was not the target of the widened membership.

The alliance, co founded by India and France, promotes solar energy deployment worldwide.