In conducting its activities, PT. Sembilan Tiga Perdana is dedicated to environmental management, protection, preservation within and surrounding its IUP area. The company also actively strives to mitigate the negative impacts of mining operations. Key activities in this regards include: Acid Mine Drainage Management, Periodic Monitoring of Mining Wastewater, Environmental Quality Monitoring, Hazardous Waste Management, Nursery Seedling, Reclamation, and Revegetation.