Regain provides sustainable advantages for the aluminium and cement industry and for the environment through the safe and economic transformation of smelter waste materials. Primary aluminium smelters have had a problem with hazards in residual waste materials such as spent pot lining (SPL). In its raw form SPL contains toxic levels of cyanide and gives off dangerous gases when exposed to moisture. A lot of this material has gone to landfill, but it is increasingly difficult to obtain the regulatory approvals for this practice. At the same time, manufacturers in energy-intensive industries such as cement are faced with expectations to improve business performance and reduce greenhouse gas emissions. Regain integrates the needs of the aluminium and cement industry by following the principles of Industrial Ecology. Regain provides aluminium smelters with a safe, sustainable and secure solution for SPL by eliminating the cyanide and dangerous gas hazards - with no residual material. Regain provides cement manufacturers with high quality products and technical support that delivers significant benefits in production, energy saving and greenhouse gas reduction. At the same time, Regain benefits the community and the environment by eliminating hundreds of thousands of tonnes of hazardous wastes from going to landfill, and helping to reduce greenhouse gas emissions.