As a palm oil producing company committed to sustainable practices, PT REA Kaltim Plantations has formed a conservation team which was initiated in 2007 until finally inaugurated in 2008 to become a Conservation Department with the name REAKON. Management of High Conservation Value Areas (HCVA) at PT REA Kaltim Plantations continues and is even further strengthened based on East Kalimantan Provincial Regulation No. 7 of 2018 Concerning Sustainable Plantation Development which accommodates HCVA protection. All HCVA management activities at PT REA Kaltim Plantations aim to maintain and increase conservation values, prevent negative impacts from plantation operations and other disturbances.

Until 2022, 360 species were recorded in the conservation area of PT REA Kaltim Plantations & Group in 6 classes, namely 47 species of mammal, 148 species of aves, 32 species of reptile, 33 species of amphibian, 50 species of lepidoptera, as well as 40 species of pisces. Of all the species recorded, REAKON has found several endangered species according to the International Union for Conservation of Nature (IUCN) red list, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), endemic status and Indonesian regulation regarding protected species. There are 40 species of mammals, 69 species of birds, 21 species of reptiles, 8 species of amphibians, 2 species of insects, 4 species of fish and 4 species of flora.

All HCVA management activities at PT REA Kaltim Plantations aim to maintain and increase conservation value, prevent negative impacts from plantation operations and other disturbances such as animal attacks on settlements due to habitat loss to the explosion of pest populations both in plantations such as rats and squirrels. This also includes avoiding the appearance of the Macaca fascicularis and Macaca Nemestrina.