Seruyung Mine is owned by J Resources through PT Sago Prima Pratama (SPP). SPP holds a Mining Business License - Production Operation (IUP-OP) covering 3,560Ha in North Kalimantan Province, Indonesia. The tenement consists of a single land block that contains Seruyung Mine, which has been in production since January 2014.

Since 2021, the Seruyung Mine had entered the post-mining phase. It is currently undergoing its mine closure phase, which marks a significant transition in its operational cycle. This phase focuses on post-mining rehabilitation following sustainable mining concepts and best practice standards. The closure process is being carefully managed to minimize the environmental impact on ecosystems and local communities. It aims to restore the area for future use while adhering to J Resources' commitment to environmental stewardship and responsible resource management.