PT Sejahtera Karna Menggoreng (PT SKM) is a national company in Indonesia, established in Jakarta with the goal of helping the community, environment, and government in collecting and managing Used Cooking Oil (UCO) to prevent them from polluting the environment and use them for the material of biodiesel instead.

j-lantah is the brand name used by PT SKM in running its business, which is collecting UCO from Indonesian people, both from households and industries. j-lantah is also the name of an application developed by PT SKM to collect UCO from communities in the Greater Jakarta area, which can be widely used by the public through smartphones. In running its business, PT SKM is also supported by Mitra j-lantah (motorists) who have a partnership relationship with us in picking up the UCO that has been collected by people, which makes it easier for them to sell their collected UCO while also getting additional income to cover some of their needs, both in households and industries.