Mine Tailings Stabilization In 2018, we invented a low-CO2 the mining industry’s ability to legacy sites process of stabilizing acid- deliver new and more sustainable Novel methods of acid rock drainage generating (or potentially acid- solutions to manage mine tailing (ARD) mitigation and tailings generating) mine tailings by waste with a clear path to stabilization for future mines at converting mine waste to permanent remediation of tailing design stage geopolymer cement reagents that sites. are capable of stabilizing mine Terra continues to pursue Terra is also exploring opportunities waste. opportunities in the private and to repurpose mine tailings sources Mine tailings are an extremely public sectors related to mine as a feedstock to commercially varied class of waste materials. tailings stabilization. produce specification SCM’s, BCM’s, Generally, conventional tailings and ACM’s (versus reclamation on facilities are an ongoing liability We have developed advances in on- site). because they are both physically site geopolymer stabilization: Although our mining and concrete and chemically challenging to Reducing cost and waste in existing applications may appear diverse, stabilize. These problems are cemented backfill operations the core technology of producing increasingly under scrutiny in many Physical and chemical stabilization binders from local materials and jurisdictions. Permitting of new of unstable tailings at existing and waste is similar in both concrete and mines will be materially impacted by mine tailings stabilization