The undersigning organizations wish to express profound concern regarding the consideration of Bill 2903/2023 by the Brazilian Senate, which pose a direct threat not only to the territories that Indigenous peoples currently occupy, but also those which they have traditionally owned, occupied, or made use of. These territories hold critical importance in safeguarding the Amazon rainforest and other Brazilian biomes, as well as the rights and well-being of its Indigenous communities. We strongly appeal to the international community to join in solidarity to the cause of Indigenous peoples’ rights and the preservation of their ancestral lands.