Kapur is logged from old-growth forest, often illegally. These forests have developed over the course of hundreds of years. When harvested, these trees are often between 250 and 1000 years old.[2] For a tree from the family Dipterocarpaceae, it takes approximately 100 years to reach a height of 30 meters.[3] Most of the species that are sold as kapur are listed on the IUCN Red List for endangered species. For example, D. fusca is critically endangered.[4]
According to FSC, certified tropical hardwood can counteract deforestation. Forests that are managed according to the FSC standards, become economically valuable and might therefore not be converted to farmland.[5] However, other organisations advise consumers to stay away from kapur altogether to avoid logging of centuries-old trees.[6][7]