Group of Chimbu tribesmen gathered around the fire (Papua New Guinea) The Chimbu, also known as the Simbu or Kuman people, are an indigenous group living in the Eastern Highlands Province of Papua New Guinea. They traditionally use mud as a form of body decoration and paint. This practice is often associated with ceremonial events, rituals, and dances. Mud is mixed with natural pigments to create various colors, and it is applied to the body. The use of mud and body painting serves both aesthetic and symbolic purposes.