The document discusses the indigenous peoples of the Philippines, their customary laws, and issues related to violations of their rights. It provides demographic information on the over 100 ethno-linguistic indigenous groups found across the country, comprising around 12 million people. It explains their traditional governance systems and land tenure based on customary laws. However, large-scale extractive projects like mining and logging have frequently violated indigenous peoples' right to free, prior, and informed consent. The document presents several case studies showcasing conflicts between indigenous groups and companies operating on ancestral lands without proper consultation.